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GYRO AXIS [100 records]
Record 1 - internal organization data 2020-09-11
Record 1, English
Record 1, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 1, Main entry term, English
- vertical rapid alignment
1, record 1, English, vertical%20rapid%20alignment
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Vertical rapid alignment. The purpose of the vertical rapid align loop is to align the VG [vertical gyro] spin axis parallel to the local vertical and to align the sensitive axis of the liquid levels perpendicular to the local vertical within 1 degree of arc in less than 60 seconds of time at a temperature of 25° C. 1, record 1, English, - vertical%20rapid%20alignment
Record 1, Key term(s)
- vertical rapid align
Record 1, French
Record 1, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 1, Main entry term, French
- alignement rapide sur la verticale
1, record 1, French, alignement%20rapide%20sur%20la%20verticale
masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- alignement rapide à la verticale 2, record 1, French, alignement%20rapide%20%C3%A0%20la%20verticale
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Alignement rapide sur la verticale. Le but du cadre d'alignement rapide à la verticale est d'aligner l'axe de rotation du VG [gyroscope de verticale] parallèlement à la verticale locale et d'aligner l'axe sensible des niveaux à liquide perpendiculairement à la verticale locale à 1 degré près en moins de 60 secondes et à une température de 25 °C. 1, record 1, French, - alignement%20rapide%20sur%20la%20verticale
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2019-04-30
Record 2, English
Record 2, Subject field(s)
- Field Artillery
- Weapon Systems
Record 2, Main entry term, English
- single axis force feedback accelerometer
1, record 2, English, single%20axis%20force%20feedback%20accelerometer
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The azimuth gimbal consists of a stiff aluminium structure on which are mounted three single axis, floated rate integrating gyroscopes and three single axis force feedback accelerometers, together with an electronics card containing gyro and accelerometer pre-amplifiers, and environmental control circuits. 1, record 2, English, - single%20axis%20force%20feedback%20accelerometer
Record number: 2, Textual support number: 1 OBS
Part of the inertial platform fitted to the Position and Azimuth Determining System for Artillery (PADS). 2, record 2, English, - single%20axis%20force%20feedback%20accelerometer
Record 2, Key term(s)
- single axis force feed-back accelerometer
Record 2, French
Record 2, Domaine(s)
- Artillerie de campagne
- Systèmes d'armes
Record 2, Main entry term, French
- accéléromètre à rappel de force à un degré de liberté
1, record 2, French, acc%C3%A9l%C3%A9rom%C3%A8tre%20%C3%A0%20rappel%20de%20force%20%C3%A0%20un%20degr%C3%A9%20de%20libert%C3%A9
masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Le cardan d'azimut est constitué par une structure d'aluminium rigide sur laquelle sont montés trois gyroscopes flottants intégrateurs à un degré de liberté, et trois accéléromètres à rappel de force à un degré de liberté, ainsi qu'une carte électronique, portant les préamplificateurs des gyros et des accéléromètres, et des circuits de régulation thermique. 1, record 2, French, - acc%C3%A9l%C3%A9rom%C3%A8tre%20%C3%A0%20rappel%20de%20force%20%C3%A0%20un%20degr%C3%A9%20de%20libert%C3%A9
Record number: 2, Textual support number: 1 OBS
Se trouvent dans la plate-forme inertielle du système de positionnement et de détermination d'azimut (PADS ou Position and Azimuth Determining System). 2, record 2, French, - acc%C3%A9l%C3%A9rom%C3%A8tre%20%C3%A0%20rappel%20de%20force%20%C3%A0%20un%20degr%C3%A9%20de%20libert%C3%A9
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2017-11-16
Record 3, English
Record 3, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 3, Main entry term, English
- directional gyroscope
1, record 3, English, directional%20gyroscope
correct, officially approved
Record 3, Abbreviations, English
Record 3, Synonyms, English
- directional gyro 2, record 3, English, directional%20gyro
correct
- DG 3, record 3, English, DG
correct
- DG 3, record 3, English, DG
- heading indicator 4, record 3, English, heading%20indicator
correct
- HI 5, record 3, English, HI
correct
- HI 5, record 3, English, HI
- directional 6, record 3, English, directional
correct, noun
- direction indicator 7, record 3, English, direction%20indicator
correct
- gyro direction indicator 8, record 3, English, gyro%20direction%20indicator
- directional gyro indicator 9, record 3, English, directional%20gyro%20indicator
- self-levelling free gyroscope corrected for drift 10, record 3, English, self%2Dlevelling%20free%20gyroscope%20corrected%20for%20drift
less frequent
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
An instrument that senses yaw movement about the vertical axis.It indicates a change in direction relative to the magnetic north pole. 11, record 3, English, - directional%20gyroscope
Record number: 3, Textual support number: 2 DEF
A gyroscope instrument for indicating direction, containing a free gyroscope which holds its position in azimuth and thus indicates angular deviation from a pre-set heading. 12, record 3, English, - directional%20gyroscope
Record number: 3, Textual support number: 1 CONT
The heading indicator(HI) uses the principle of rigidity in space for it's operation. The gyro is mounted such that it registers changes around the vertical axis only; i. e. direction changes. The compass card attached to the gyro appears to the pilot as though it is turning. In reality, it and the attached gyro are remaining rigid in space, while the aircraft and case turn about the gyro. The HI is not automatically synchronized with the magnetic compass. It must be set to the compass heading while level on the airport surface prior to take-off. 13, record 3, English, - directional%20gyroscope
Record number: 3, Textual support number: 2 CONT
The directional gyroscope is used in aircraft and is sometimes called a self-levelling free gyroscope corrected for drift. 10, record 3, English, - directional%20gyroscope
Record number: 3, Textual support number: 1 OBS
directional gyroscope: term officially approved by the International Civil Aviation Organization (ICAO). 14, record 3, English, - directional%20gyroscope
Record 3, Key term(s)
- directional indicator
Record 3, French
Record 3, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 3, Main entry term, French
- conservateur de cap
1, record 3, French, conservateur%20de%20cap
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- gyroscope directionnel 2, record 3, French, gyroscope%20directionnel
correct, masculine noun, officially approved
- DG 3, record 3, French, DG
correct, masculine noun, officially approved
- DG 3, record 3, French, DG
- gyro directionnel 4, record 3, French, gyro%20directionnel
correct, masculine noun, officially approved
- directionnel 5, record 3, French, directionnel
correct, masculine noun
- gyroscope de direction 6, record 3, French, gyroscope%20de%20direction
masculine noun
- gyroscope directionnel garde-cap 7, record 3, French, gyroscope%20directionnel%20garde%2Dcap
masculine noun
- garde-cap 7, record 3, French, garde%2Dcap
masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Instrument gyroscopique qui sert à indiquer la direction et qui contient un gyroscope qui garde sa position en azimut, et par là indique toute déviation d'angle de la course prévue. 8, record 3, French, - conservateur%20de%20cap
Record number: 3, Textual support number: 2 DEF
Instrument gyroscopique qui est utilisé comme un compas, mais plus précis et plus stable même pendant la montée, la descente ou dans les virages. 9, record 3, French, - conservateur%20de%20cap
Record number: 3, Textual support number: 1 CONT
Le conservateur de cap, également appelé directionnel, est un gyroscope libre dont l'axe est orienté horizontalement selon la direction qui lui a été assignée lors de sa mise en rotation. Cette orientation sera prise pour référence horizontale. En choisissant le nord magnétique comme référence, cet appareil indiquera le cap magnétique de l'avion. Il faudra le «caler» avant chaque vol lorsque l'avion est aligné sur la piste (piste dont on connaît l'orientation). 10, record 3, French, - conservateur%20de%20cap
Record number: 3, Textual support number: 2 CONT
Le conservateur de cap, ou gyroscope directionnel, est l'un des trois instruments à gyroscope. Aligné avec le compas, il donne une indication précise et stable concernant le cap magnétique de l'appareil. Le conservateur de cap constitue une aide importante car le compas est sujet à des erreurs causées par l'accélération, la décélération et la courbure du champ magnétique terrestre, particulièrement sous les hautes latitudes. Il arrive fréquemment que le compas oscille; il est particulièrement difficile à lire dans les turbulences ou pendant les manœuvres. Fonctionnement. Le gyroscope du conservateur de cap pivote dans un plan vertical. Une carte comportant des caps maintient son orientation lorsque l'avion tourne. Le mouvement apparent de la carte donne au pilote une indication précise et instantanée du cap de l'avion et de la direction dans laquelle il tourne. La carte est marquée de 5 degrés en 5 degrés, avec une indication chiffrée tous les 30 degrés et les points cardinaux repérés par N, S, E, O. 11, record 3, French, - conservateur%20de%20cap
Record number: 3, Textual support number: 3 CONT
Centrale de cap et de verticale pour avion. Une centrale est constituée d'un gyro-indicateur de verticale et d'un gyroscope directionnel garde-cap. 7, record 3, French, - conservateur%20de%20cap
Record number: 3, Textual support number: 1 OBS
gyroscope directionnel; gyro directionnel; DG : termes et abréviation uniformisés par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes. 12, record 3, French, - conservateur%20de%20cap
Record number: 3, Textual support number: 2 OBS
gyroscope directionnel : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI). 12, record 3, French, - conservateur%20de%20cap
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Instrumentos y equipo de vuelo (Industria aeronáutica)
- Pilotaje y navegación aérea
- Instrumentos de navegación
Record 3, Main entry term, Spanish
- indicador giroscópico de rumbo
1, record 3, Spanish, indicador%20girosc%C3%B3pico%20de%20rumbo
correct, masculine noun, officially approved
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 OBS
indicador giroscópico de rumbo : término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI). 2, record 3, Spanish, - indicador%20girosc%C3%B3pico%20de%20rumbo
Record 4 - internal organization data 2017-01-13
Record 4, English
Record 4, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 4, Main entry term, English
- gyro drift
1, record 4, English, gyro%20drift
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- gyroscopic drift 2, record 4, English, gyroscopic%20drift
correct
- drift 3, record 4, English, drift
correct, noun
- drifting 4, record 4, English, drifting
correct, see observation
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Angular rate gyro accuracy is characterized by two parameters: scale factor and drift. The scale factor describes the capability of the gyro to accurately sense angular velocity at different angular rates ... Gyro drift characterizes the ability of the gyro to reference all rate measurements to the nominal zero point. It appears as an additive term on the gyro output, so any actual drift away from a given or predetermined value will cause the angular errors to accumulate. 3, record 4, English, - gyro%20drift
Record number: 4, Textual support number: 2 CONT
The free gyro... can be converted to a directional reference by remounting its case with the spin axis horizontal and the indicator axis vertical. The indicator will then give the airplane's heading. Gyro drift is countered by slaving the instrument to the Earth's magnetic field, via either a separate magnetic compass or a flux valve device. 5, record 4, English, - gyro%20drift
Record number: 4, Textual support number: 1 OBS
The change in azimuth (direction) of the spin axis is often referred to as "drifting": sometimes "tilting" and "drifting" are collectively called "apparent wander." 4, record 4, English, - gyro%20drift
Record 4, Key term(s)
- gyroscope drift
Record 4, French
Record 4, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 4, Main entry term, French
- dérive du gyroscope
1, record 4, French, d%C3%A9rive%20du%20gyroscope
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- dérive gyroscopique 2, record 4, French, d%C3%A9rive%20gyroscopique
correct, feminine noun
- dérive 3, record 4, French, d%C3%A9rive
correct, feminine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Le défaut de stabilité, appelé dérive du gyroscope mesurée en degrés par heure [...], ou en degrés par seconde [...], dépend de la technologie mise en œuvre et de la qualité de la «suspension» de l'élément sensible et de son isolement vis-à-vis des influences externes (température, gravité, gaz ambiant, etc.). 4, record 4, French, - d%C3%A9rive%20du%20gyroscope
Record number: 4, Textual support number: 2 CONT
Pour l'utilisation sur les centrales inertielles, il s'est révélé nécessaire de développer des gyroscopes présentant une dérive pratiquement négligeable. Or la cause principale de cette dérive réside dans les frottements qui s'exercent sur le corps du gyroscope, dont la vitesse de rotation dépasse 20 000 tr/min. Divers moyens ont été imaginés pour créer des suspensions sans frottement [...] 5, record 4, French, - d%C3%A9rive%20du%20gyroscope
Record number: 4, Textual support number: 1 OBS
L'usage fait donner des appellations différentes à cette composante de rotation instantanée [...] : lorsqu'elle est due à un phénomène déterministe et connu, on l'appelle précession gyroscopique; lorsqu'elle est due à un phénomène aléatoire, ou bien que l'on ne maîtrise pas, on l'appelle dérive gyroscopique. 6, record 4, French, - d%C3%A9rive%20du%20gyroscope
Record number: 4, Textual support number: 2 OBS
Ce mouvement est dit «mouvement de précession» s'il est provoqué volontairement, et «dérive» s'il est dû à un élément perturbateur. 7, record 4, French, - d%C3%A9rive%20du%20gyroscope
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2011-09-27
Record 5, English
Record 5, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 5, Main entry term, English
- transfer gyro
1, record 5, English, transfer%20gyro
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
The transfer mode should only be used after rapid alignment sequences have been completed in order to reduce the possibilities of initial drift associated with a cold start.... With the transfer gyro properly aligned, calibrated and connected to the platform harness, the transfer command switch on the transfer handle is held depressed for 15 seconds, actuating relays [x, y, z]. The transfer gyro error signal is passed to the azimuth gimbal torque motor which aligns the spin axis of the platform DG [directional gyro] to that of the transfer gyro heading, derived by placing the transfer gyro on the prealigned mount, to the fore and aft line of the A/C [aircraft]. 1, record 5, English, - transfer%20gyro
Record 5, Key term(s)
- transfer gyroscope
Record 5, French
Record 5, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 5, Main entry term, French
- gyroscope de transfert
1, record 5, French, gyroscope%20de%20transfert
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- gyro de transfert 2, record 5, French, gyro%20de%20transfert
correct, masculine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Le mode de transfert ne devrait être utilisé qu'après que les phases de l'alignement rapide ont été complétées afin de réduire les possibilités de dérive initiale associée à un départ à froid. [...] Lorsque le gyroscope de transfert est correctement aligné, calibré et relié [à] la plate-forme, l'interrupteur de commande sur la manette de transfert est tenu poussé pendant 15 secondes pour actionner les relais [x,y,z]. Le signal d'erreur du gyroscope de transfert est passé au moteur couple du cardan azimutal qui aligne l'axe de rotation du directionnel sur celui du cap du gyroscope de transfert, dérivé en plaçant le gyroscope de transfert sur la monture déjà alignée sur l'axe longitudinal de l'avion. 3, record 5, French, - gyroscope%20de%20transfert
Record number: 5, Textual support number: 2 CONT
Gyro de transfert. La grande problématique du navigateur était de décoller avec un cap vrai le plus précis possible pour se garantir une navigation sans trop d'histoires. Il avait été imaginé un conservateur de cap installé dans une Renault 4L qui stationnait près du bureau de piste. Avant chaque départ en mission la 4L était utilisée pour caler la centrale gyroscopique du Mirage IV au moyen du gyro de transfert prévu à cet effet dans son coffre. Cette solution assez contraignante a été abandonnée lorsqu'il est apparu que le calage manuel de la centrale, avion aligné sur l'axe de piste, était d'une précision suffisante. 2, record 5, French, - gyroscope%20de%20transfert
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2011-07-18
Record 6, English
Record 6, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 6, Main entry term, English
- dynamically tuned suspension
1, record 6, English, dynamically%20tuned%20suspension
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 OBS
Mechanical gyros(Dynamically Tuned Gyro, DTG) consist of a rotating body suspended dynamically tuned on low friction gimbals. The rotating mass attempts to keep the orientation of the rotation axis constant and thus creates a torque on the suspension when the system is turned. The torque is proportional to the rate. 2, record 6, English, - dynamically%20tuned%20suspension
Record 6, French
Record 6, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 6, Main entry term, French
- suspension dynamique accordée
1, record 6, French, suspension%20dynamique%20accord%C3%A9e
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Équations de la gyroscopie [...] Suspension dynamique accordée [...] le principe : Les paliers des articulations S1-S2 et S2-S3 ne sont plus des roulements, mais remplacés par [des] joints de Hooke ou encore des barres de torsion élastiques. Un calcul complexe montre qu'à une vitesse précise dite d'accord, la raideur des joints est compensée [...] par le couple des forces d'inertie centrifuge et la suspension ne présente plus alors aucune rigidité. Les débattements de la toupie, en orientation, sont limités à quelques degrés. La condition d'accord définissant la vitesse correcte relie les caractéristiques des barres de torsion et un moment d'inertie particulier de l'anneau interne. On l'appelle la condition de tuning et c'est ce qui donne à la technique le nom de gyroscope accordé. 1, record 6, French, - suspension%20dynamique%20accord%C3%A9e
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2011-06-28
Record 7, English
Record 7, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 7, Main entry term, English
- pitch rate gyroscope
1, record 7, English, pitch%20rate%20gyroscope
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- pitch rate gyro 2, record 7, English, pitch%20rate%20gyro
correct
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
[A] gyro that tends to compensate the motion of aircraft with reference to the transverse(pitch) axis OY. 3, record 7, English, - pitch%20rate%20gyroscope
Record number: 7, Textual support number: 1 CONT
The gyropilot commonly called an automatic pilot ... The roll disturbance is detected by a roll rate gyroscope and by a roll angle pendulum, which senses displacement. The aileron servo applies corrective action. Pitch disturbance is detected by a pitch rate gyroscope and a pitch pendulum. The elevator servo applies corrective action. 1, record 7, English, - pitch%20rate%20gyroscope
Record 7, French
Record 7, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 7, Main entry term, French
- gyromètre de tangage
1, record 7, French, gyrom%C3%A8tre%20de%20tangage
correct, masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
- gyromètre longitudinal 2, record 7, French, gyrom%C3%A8tre%20longitudinal
masculine noun
Record 7, Textual support, French
Record number: 7, Textual support number: 1 OBS
Un gyromètre est un gyroscope qui ne possède qu'un seul cadre de suspension, c'est-à-dire un seul degré de liberté, et qui sert à mesurer une vitesse angulaire de rotation. 3, record 7, French, - gyrom%C3%A8tre%20de%20tangage
Record number: 7, Textual support number: 2 OBS
gyromètre de tangage : terme d'usage obligatoire au Bureau de la traduction du Canada. 4, record 7, French, - gyrom%C3%A8tre%20de%20tangage
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2010-12-02
Record 8, English
Record 8, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 8, Main entry term, English
- azimuth gyroscope
1, record 8, English, azimuth%20gyroscope
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
- azimuth gyro 2, record 8, English, azimuth%20gyro
correct
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
The gyros are used to maintain the platform's inertial orientation by sensing rotations of the platform caused by vehicle-rotation-induced friction at the gimbal pivot points... One gyro-called the vertical gyro-is oriented so its input axes are aligned with the X and Y platform axes; its input axes provide IMU [Inertial Measurement Unit] platform roll and pitch stabilization. The second gyro is oriented so that one input axis lies along the platform's Z axis and the other lies in the X-Y plane. This gyro-the azimuth gyro-provides platform yaw stabilization with the Z input axis, while the second input axis is used as a platform rate detector for built-in test equipment. 3, record 8, English, - azimuth%20gyroscope
Record number: 8, Textual support number: 2 CONT
The sensors for angular velocity are vibrating gyroscopes (3 axes, to detect rotation and pitch/roll pendulations of the payload). An error signal is obtained differencing the signal from the azimuth gyroscope and a constant level settable from the telemetry, which controls the speed of rotation. Such error signal drives an analog PID [Proportional Integral Differential] circuit; the output of the PID is connected to the PWM [Pulse Width Modulation] driver supplying current to the pivot azimuth motors. 3, record 8, English, - azimuth%20gyroscope
Record number: 8, Textual support number: 3 CONT
azimuth gyro: term used at Natural Resources Canada - Earth Sciences Sector. 4, record 8, English, - azimuth%20gyroscope
Record number: 8, Textual support number: 1 PHR
Azimuth gyro drift rate. 5, record 8, English, - azimuth%20gyroscope
Record 8, French
Record 8, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 8, Main entry term, French
- gyroscope d'azimut
1, record 8, French, gyroscope%20d%27azimut
correct, masculine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
- gyro d'azimut 2, record 8, French, gyro%20d%27azimut
correct, masculine noun
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
La plate-forme stabilisée [...] Trois gyroscopes sont utilisés : (a) Un gyroscope d'azimut qui, n'ayant aucun degré de liberté dans l'axe vertical, détecte tout déplacement de la plate-forme en azimut. (b) Deux gyroscopes d'inclinaison [...] 3, record 8, French, - gyroscope%20d%27azimut
Record number: 8, Textual support number: 1 OBS
gyroscope d'azimut : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 4, record 8, French, - gyroscope%20d%27azimut
Record number: 8, Textual support number: 1 PHR
Vitesse de dérive du gyroscope d'azimut. 5, record 8, French, - gyroscope%20d%27azimut
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2010-07-23
Record 9, English
Record 9, Subject field(s)
- Applications of Electronics
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 9, Main entry term, English
- output signal generator
1, record 9, English, output%20signal%20generator
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
- output signal generator of the gyroscope 1, record 9, English, output%20signal%20generator%20of%20the%20gyroscope
correct
- gyroscope output signal generator 2, record 9, English, gyroscope%20output%20signal%20generator
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
The single-axis inertial platform... The angular motions of the controlled member are sensed by the single-axis gyro. The output signal of the gyro is electronically processed and fed to the torque motor(TM) of the stable element and to the torque generator(TG) of the gyro. The problem is to determine how to do the electronic processing so that the controlled member maintains its orientation in spite of disturbances. The voltage across the output signal generator(SG) of the gyroscope is proportional to the integral of the angular velocity of the controlled member about the gyroscope's input axis. Consequently, this signal is fed to an amplifier and then to a motor, which drives the controlled member in the proper direction to null the ouptut of the gyroscope. 1, record 9, English, - output%20signal%20generator
Record number: 9, Textual support number: 1 OBS
signal generator: A source of electrical signals, whose characteristics, e.g. waveform, frequency, voltage, etc. can be fixed or controlled within specified limits. 3, record 9, English, - output%20signal%20generator
Record 9, Key term(s)
- output SG
Record 9, French
Record 9, Domaine(s)
- Applications de l'électronique
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 9, Main entry term, French
- générateur du signal de sortie
1, record 9, French, g%C3%A9n%C3%A9rateur%20du%20signal%20de%20sortie
masculine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
- générateur du signal de sortie du gyroscope 1, record 9, French, g%C3%A9n%C3%A9rateur%20du%20signal%20de%20sortie%20du%20gyroscope
masculine noun
Record 9, Textual support, French
Record number: 9, Textual support number: 1 OBS
générateur de signaux : Source de signaux électriques dont les caractéristiques (forme d'onde, fréquence, tension, etc.) peuvent être réglées à des valeurs fixes, ou à des valeurs variables dans des limites spécifiées. 2, record 9, French, - g%C3%A9n%C3%A9rateur%20du%20signal%20de%20sortie
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2010-04-12
Record 10, English
Record 10, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 10, Main entry term, English
- vertical gyroscope
1, record 10, English, vertical%20gyroscope
correct
Record 10, Abbreviations, English
- VG 2, record 10, English, VG
correct
Record 10, Synonyms, English
- vertical gyro 3, record 10, English, vertical%20gyro
correct
- VG 4, record 10, English, VG
correct
- VG 4, record 10, English, VG
- gyrovertical 5, record 10, English, gyrovertical
noun
- attitude gyro 6, record 10, English, attitude%20gyro
Record 10, Textual support, English
Record number: 10, Textual support number: 1 DEF
[A] two-degrees-of-freedom gyro torqued on gimbal mounts to hold spin axis vertical, thus giving output signals proportional to rotation about two orthogonal axes, usually pitch/roll. 7, record 10, English, - vertical%20gyroscope
Record number: 10, Textual support number: 1 CONT
A vertical gyro is a gyroscope whose spin axis is "stabilized" or gimbaled to remain vertical with respect to gravity. The vertical gyro is used to measure rotations away from vertical relative to the fixed earth reference frame. 8, record 10, English, - vertical%20gyroscope
Record number: 10, Textual support number: 1 OBS
In this gyro, output signals are produced by gimbal angular displacements that correspond to angular displacements of the case surrounding two nominally orthogonal, horizontal axes. 9, record 10, English, - vertical%20gyroscope
Record number: 10, Textual support number: 2 OBS
Attitude gyros, technically called vertical gyros because of the orientation of their spin axis ... 6, record 10, English, - vertical%20gyroscope
Record 10, Key term(s)
- attitude gyroscope
Record 10, French
Record 10, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 10, Main entry term, French
- gyroscope de verticale
1, record 10, French, gyroscope%20de%20verticale
correct, masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
- gyro de verticale 2, record 10, French, gyro%20de%20verticale
correct, masculine noun, officially approved
- gyro-indicateur de verticale 3, record 10, French, gyro%2Dindicateur%20de%20verticale
correct, masculine noun
- indicateur de verticale 3, record 10, French, indicateur%20de%20verticale
correct, masculine noun
- indicateur d'attitude 4, record 10, French, indicateur%20d%27attitude
masculine noun
- gyro vertical 5, record 10, French, gyro%20vertical
masculine noun
Record 10, Textual support, French
Record number: 10, Textual support number: 1 DEF
Instrument qui détecte les montées ou descentes de l'avion, ainsi que les inclinaisons à droite ou à gauche. 6, record 10, French, - gyroscope%20de%20verticale
Record number: 10, Textual support number: 1 CONT
Indicateur de verticale. C'est un appareil comportant un gyroscope dont le moment cinétique est dirigé au mieux suivant la verticale. Le carter du gyroscope est monté à la Cardan suivant les axes de roulis ou de tangage du bâtiment [...] Les pendules détecteurs (roulis ou tangage) détectent les écarts de verticale, et ils alimentent les moteurs couples correspondants (roulis ou tangage) de façon à ramener les signaux des pendules à zéro, le moment cinétique du gyroscope est ainsi maintenu vertical. 3, record 10, French, - gyroscope%20de%20verticale
Record number: 10, Textual support number: 1 OBS
[Cet instrument] surveille donc, dans le pilotage automatique, les mouvements de tangage et de roulis. 6, record 10, French, - gyroscope%20de%20verticale
Record number: 10, Textual support number: 2 OBS
gyro de verticale : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes. 7, record 10, French, - gyroscope%20de%20verticale
Record 10, Key term(s)
- gyro indicateur de verticale
- gyroscope indicateur de verticale
- gyroscope-indicateur de verticale
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2009-01-14
Record 11, English
Record 11, Subject field(s)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
- Launching and Space Maneuvering
Record 11, Main entry term, English
- precess the DG
1, record 11, English, precess%20the%20DG
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
To precess the DG [directional gyro], a DC [direct current] signal is applied to the torquer of the microsyn mounted on the sensitive axis. 1, record 11, English, - precess%20the%20DG
Record 11, Key term(s)
- precess the directional gyroscope
- precess the directional gyro
Record 11, French
Record 11, Domaine(s)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
- Lancement et manœuvres dans l'espace
Record 11, Main entry term, French
- faire précessionner le directionnel
1, record 11, French, faire%20pr%C3%A9cessionner%20le%20directionnel
correct
Record 11, Abbreviations, French
Record 11, Synonyms, French
- faire précesser le directionnel 2, record 11, French, faire%20pr%C3%A9cesser%20le%20directionnel
Record 11, Textual support, French
Record number: 11, Textual support number: 1 CONT
Pour faire précessionner le [gyroscope] directionnel un signal en courant continu est appliqué au moteur couple du microsyn qui est monté sur l'axe sensible. 1, record 11, French, - faire%20pr%C3%A9cessionner%20le%20directionnel
Record 11, Key term(s)
- faire précessionner le gyroscope directionnel
- faire précesser le gyroscope directionnel
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 2007-04-12
Record 12, English
Record 12, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
Record 12, Main entry term, English
- double-integrating gyro
1, record 12, English, double%2Dintegrating%20gyro
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
- double integrating gyro 2, record 12, English, double%20integrating%20gyro
correct
Record 12, Textual support, English
Record number: 12, Textual support number: 1 DEF
A single-degree-of-freedom gyro having essentially no restraint of its spin axis about the output axis. 1, record 12, English, - double%2Dintegrating%20gyro
Record number: 12, Textual support number: 1 OBS
In this gyro an output signal is produced by gimbal angular displacement, relative to the base, which is proportional to the double integral of the angular rate of the base about the input axis. 1, record 12, English, - double%2Dintegrating%20gyro
Record 12, Key term(s)
- double integrating gyroscope
- double-integrating gyroscope
Record 12, French
Record 12, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
Record 12, Main entry term, French
- gyroscope à double intégration
1, record 12, French, gyroscope%20%C3%A0%20double%20int%C3%A9gration
masculine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
- gyro à double intégration 2, record 12, French, gyro%20%C3%A0%20double%20int%C3%A9gration
masculine noun
Record 12, Textual support, French
Record 12, Spanish
Record 12, Textual support, Spanish
Record 13 - internal organization data 2007-03-22
Record 13, English
Record 13, Subject field(s)
- Aircraft Piloting and Navigation
- Launching and Space Maneuvering
Record 13, Main entry term, English
- pitch attitude
1, record 13, English, pitch%20attitude
correct, officially approved
Record 13, Abbreviations, English
Record 13, Synonyms, English
- body attitude 2, record 13, English, body%20attitude
correct, see observation
Record 13, Textual support, English
Record number: 13, Textual support number: 1 DEF
The attitude of an aircraft, rocket, or other flying vehicle, referred to the relationship between the longitudinal body axis and a chosen reference line or plane as seen from the side. 3, record 13, English, - pitch%20attitude
Record number: 13, Textual support number: 1 CONT
The attitude indicator shows rotation about both the longitudinal axis to indicate the degree of bank, and about the lateral axis to indicate pitch(nose up, level or nose down). It utilizes the rigidity characteristic of the gyro. It is gimbaled to permit rotation about the lateral axis indicating pitch attitude, and about the longitudinal axis to indicate roll attitude. 4, record 13, English, - pitch%20attitude
Record number: 13, Textual support number: 1 OBS
body attitude: term used for the B-767. 5, record 13, English, - pitch%20attitude
Record number: 13, Textual support number: 2 OBS
pitch attitude: term officially approved by the International Civil Aviation Organization (ICAO). 6, record 13, English, - pitch%20attitude
Record number: 13, Textual support number: 1 PHR
Constant pitch attitude. 7, record 13, English, - pitch%20attitude
Record 13, French
Record 13, Domaine(s)
- Pilotage et navigation aérienne
- Lancement et manœuvres dans l'espace
Record 13, Main entry term, French
- assiette en tangage
1, record 13, French, assiette%20en%20tangage
correct, feminine noun, officially approved
Record 13, Abbreviations, French
Record 13, Synonyms, French
- assiette de tangage 2, record 13, French, assiette%20de%20tangage
correct, feminine noun
- assiette longitudinale 3, record 13, French, assiette%20longitudinale
correct, feminine noun, officially approved
Record 13, Textual support, French
Record number: 13, Textual support number: 1 CONT
L'assiette de votre avion, plus précisément l'assiette longitudinale, est grossièrement ce qui fait voler l'avion, et cette assiette se pilote par le ... manche, d'avant en arrière! 4, record 13, French, - assiette%20en%20tangage
Record number: 13, Textual support number: 2 CONT
Le lacet est le mouvement latéral du nez de l'avion. L'assiette longitudinale, c'est-à-dire la position du nez par rapport à l'horizontale, reste constante bien que l'avion pivote vers la gauche ou vers la droite. Le lacet est contrôlé par la dérive sur l'empennage de l'avion. 5, record 13, French, - assiette%20en%20tangage
Record number: 13, Textual support number: 3 CONT
Le rôle de l'horizon artificiel est de définir la verticale du lieu, c'est-à-dire de donner au pilote les références avions, l'assiette longitudinale et l'inclinaison latérale. 6, record 13, French, - assiette%20en%20tangage
Record number: 13, Textual support number: 1 OBS
assiette en tangage; assiette longitudinale : termes uniformisés par l'Organisation de l'aviation civile internationale (OACI) et par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes. 7, record 13, French, - assiette%20en%20tangage
Record number: 13, Textual support number: 1 PHR
Assiette longitudinale constante. 8, record 13, French, - assiette%20en%20tangage
Record 13, Spanish
Record 13, Campo(s) temático(s)
- Pilotaje y navegación aérea
- Lanzamiento y maniobras en el espacio
Record 13, Main entry term, Spanish
- actitud en cabeceo
1, record 13, Spanish, actitud%20en%20cabeceo
correct, feminine noun, officially approved
Record 13, Abbreviations, Spanish
Record 13, Synonyms, Spanish
Record 13, Textual support, Spanish
Record number: 13, Textual support number: 1 OBS
actitud en cabeceo : término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI). 2, record 13, Spanish, - actitud%20en%20cabeceo
Record 14 - internal organization data 2007-03-11
Record 14, English
Record 14, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
- Aircraft Piloting and Navigation
Record 14, Main entry term, English
- compass rose card
1, record 14, English, compass%20rose%20card
correct
Record 14, Abbreviations, English
Record 14, Synonyms, English
- compass card 2, record 14, English, compass%20card
correct
- compass rose 3, record 14, English, compass%20rose
correct
- azimuth card 4, record 14, English, azimuth%20card
correct
- compass dial 5, record 14, English, compass%20dial
correct
Record 14, Textual support, English
Record number: 14, Textual support number: 1 DEF
The part of a compass on which the direction graduations are placed, it is usually in the form of a thin disk or annulus graduated in degrees, clockwise from 0° at the reference direction to 360°, and sometimes also in compass points. 6, record 14, English, - compass%20rose%20card
Record number: 14, Textual support number: 1 CONT
The heading indicator(also known as the directional gyro) is an instrument designed to indicate the heading of the airplane... The gyro wheel in the heading indicator is mounted vertically and spins about its horizontal axis... The spinning gyro wheel is mounted in an inner gimbal ring that is free to turn about the horizontal axis. The inner ring is, in turn, mounted inside an outer gimbal ring. The compass rose card on the face of the instrument is attached by a series of gears to the outer gimbal ring. As the airplane turns, the compass card rotates indicating a turn to the left or right. 1, record 14, English, - compass%20rose%20card
Record number: 14, Textual support number: 2 CONT
The dial on a compass is called a card. The compass card has 360 points, called degrees. The dial will help you to find East, West, South and all the points in between. The numbers on the dial show the number of degrees from North. 5, record 14, English, - compass%20rose%20card
Record 14, French
Record 14, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
- Pilotage et navigation aérienne
Record 14, Main entry term, French
- rose graduée du compas
1, record 14, French, rose%20gradu%C3%A9e%20du%20compas
correct, feminine noun
Record 14, Abbreviations, French
Record 14, Synonyms, French
- rose compas 2, record 14, French, rose%20compas
correct, feminine noun, officially approved
- rose du compas 3, record 14, French, rose%20du%20compas
correct, feminine noun
- rose des caps 1, record 14, French, rose%20des%20caps
feminine noun
- limbe 4, record 14, French, limbe
see observation, masculine noun
Record 14, Textual support, French
Record number: 14, Textual support number: 1 DEF
Couronne circulaire en métal ou en verre sur laquelle est portée la graduation angulaire d'un instrument de mesure. 5, record 14, French, - rose%20gradu%C3%A9e%20du%20compas
Record number: 14, Textual support number: 1 CONT
La rose du compas doit être graduée dans le sens des aiguilles d'une montre de 0° à 360° à intervalles égaux ne dépassant pas 1°. Elle doit porter une graduation chiffrée tous les degrés au moins. Les répéteurs numériques sont acceptables à condition qu'ils soient facilement lisibles et qu'ils contiennent des échelles équivalentes. 6, record 14, French, - rose%20gradu%C3%A9e%20du%20compas
Record number: 14, Textual support number: 2 CONT
Le conservateur de cap (aussi appelé gyroscope directionnel) est un instrument qui indique la cap de l'avion [...] Le rotor du conservateur de cap est monté verticalement et tourne autour d'un axe horizontal [...] Ce rotor est fixé dans un cardan intérieur, lequel tourne librement autour de l'axe horizontal. Ce cardan est monté à l'intérieur d'un autre cardan. Le limbe (rose graduée du compas) visible sur la face de l'instrument, est attaché au cardan extérieur par un système d'engrenages. Lorsque l'avion effectue un virage, le limbe tourne, indiquant un virage à gauche ou à droite. 1, record 14, French, - rose%20gradu%C3%A9e%20du%20compas
Record number: 14, Textual support number: 1 OBS
rose compas : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes. 7, record 14, French, - rose%20gradu%C3%A9e%20du%20compas
Record number: 14, Textual support number: 2 OBS
limbe : Pris hors contexte précis, ce terme est un générique par rapport aux termes «rose graduée du compas» ou «rose des caps». 8, record 14, French, - rose%20gradu%C3%A9e%20du%20compas
Record 14, Spanish
Record 14, Textual support, Spanish
Record 15 - internal organization data 2003-11-21
Record 15, English
Record 15, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 15, Main entry term, English
- spin axis
1, record 15, English, spin%20axis
correct
Record 15, Abbreviations, English
- SA 2, record 15, English, SA
correct
Record 15, Synonyms, English
- rotation axis 3, record 15, English, rotation%20axis
correct
- spin axle 4, record 15, English, spin%20axle
Record 15, Textual support, English
Record number: 15, Textual support number: 1 DEF
The axis of rotation of the [gyro] rotor. 2, record 15, English, - spin%20axis
Record number: 15, Textual support number: 1 CONT
A gyroscope has three sensitive axes of interest. These are (1) spin reference axis, (2) input axis (IA), and (3) output axis (OA). The spin reference axis is the position of the spin axis at its null position as indicated by a pickoff null signal. 5, record 15, English, - spin%20axis
Record number: 15, Textual support number: 2 CONT
Gyroscope ... The wheel is found to precess slowly, not about the axis of the applied torque, but instead about an axis perpendicular to it (and also perpendicular to the spin axle). 6, record 15, English, - spin%20axis
Record 15, French
Record 15, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 15, Main entry term, French
- axe de spin
1, record 15, French, axe%20de%20spin
correct, masculine noun
Record 15, Abbreviations, French
Record 15, Synonyms, French
- axe de rotation de la toupie 2, record 15, French, axe%20de%20rotation%20de%20la%20toupie
correct, masculine noun
- axe de révolution 3, record 15, French, axe%20de%20r%C3%A9volution
correct, masculine noun
- axe de rotation 4, record 15, French, axe%20de%20rotation
correct, masculine noun
Record 15, Textual support, French
Record number: 15, Textual support number: 1 CONT
Les Gyroscopes. Ce sont des appareils capables de mesurer la vitesse de rotation absolue de Chandra selon deux axes différents, et dont le fonctionnement repose sur l'utilisation d'une toupie gyroscopique; celle-ci, animée d'une vitesse de rotation élevée (plusieurs milliers de tours par minute), possède une «rigidité inertielle» qui la maintient selon une direction fixe : si l'on applique un couple (une force qui tend à mettre un solide en rotation) sur l'axe de rotation de la toupie, celle-ci s'écarte beaucoup moins vite de sa direction initiale que si elle n'était pas animée d'un mouvement de rotation élevée (c'est d'ailleurs pour cette raison de stabilité que les balles des armes à feu sortent du canon en rotation.). 5, record 15, French, - axe%20de%20spin
Record number: 15, Textual support number: 2 CONT
Un gyroscope à 1 axe [...] comprend essentiellement : un boîtier B [...]; un anneau de cardan C [...] relié à B par un axe de cardan S appelé axe de sortie [...]; cet axe peut être matérialisé par un arbre de torsion, par des roulements à billes de haute qualité, par des ensembles pivot-pierre, par un palier hydrostatique; une toupie T reliée à C par un axe [delta] appelé axe de spin [...], perpendiculaire à S [...]; un moteur électrique d'entraînement de la toupie; [...] un détecteur d'écart [...]; un moteur-couple [...] cet appareil présente une sensibilité particulière aux rotations de son boîtier autour de l'axe E, perpendiculaire à S et à [delta], appelé, pour cette raison, axe d'entrée [...]. 6, record 15, French, - axe%20de%20spin
Record 15, Spanish
Record 15, Campo(s) temático(s)
- Mecánica general (Física)
- Pilotaje y navegación aérea
- Instrumentos de navegación
- Instrumentos y equipo de vuelo (Industria aeronáutica)
Record 15, Main entry term, Spanish
- eje de rotación
1, record 15, Spanish, eje%20de%20rotaci%C3%B3n
correct, masculine noun
Record 15, Abbreviations, Spanish
Record 15, Synonyms, Spanish
Record 15, Textual support, Spanish
Record 16 - internal organization data 2002-08-30
Record 16, English
Record 16, Subject field(s)
- Astrophysics and Cosmography
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
Record 16, Main entry term, English
- destination meridian
1, record 16, English, destination%20meridian
correct
Record 16, Abbreviations, English
Record 16, Synonyms, English
Record 16, Textual support, English
Record number: 16, Textual support number: 1 CONT
Meridian convergency error is caused... by the fact that lines of longitude(meridians) converge as they approach the poles. If the spin axis of a D. G. [directional gyro] is aligned with a meridian at one point on the earth's surface and then flown to a different location in any direction other than due north or south, it will remain aligned with the original meridian because of it's tendency to remain in one orientation in space. Due to the convergency of the meridians, the gyro will not be aligned with the destination meridian. The angle between the D. G. spin axis and the destination meridian is the convergency error. 1, record 16, English, - destination%20meridian
Record 16, French
Record 16, Domaine(s)
- Astrophysique et cosmographie
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
Record 16, Main entry term, French
- méridien de destination
1, record 16, French, m%C3%A9ridien%20de%20destination
correct, masculine noun
Record 16, Abbreviations, French
Record 16, Synonyms, French
Record 16, Textual support, French
Record number: 16, Textual support number: 1 CONT
[...] l'erreur de convergence des méridiens est produite par le fait que les lignes de longitude (méridiens) convergent en s'approchant des pôles. En supposant que l'axe de rotation d'un gyroscope directionnel (D.G.) soit aligné sur un méridien en un point donné de la terre, et puis qu'on le transporte en un endroit différent autre que vers le nord ou le sud, l'axe de ce dernier restera aligné sur le méridien d'origine, vue sa propriété de demeurer fixe dans l'espace. Donc on peut voir qu'à cause de la convergence des méridiens, un gyroscope ne peut demeurer aligné sur le méridien de destination. L'angle formé entre l'axe de rotation du gyroscope (D.G.) et le méridien de destination est appelé «erreur de convergence des méridiens». 1, record 16, French, - m%C3%A9ridien%20de%20destination
Record 16, Spanish
Record 16, Textual support, Spanish
Record 17 - internal organization data 2002-07-16
Record 17, English
Record 17, Subject field(s)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 17, Main entry term, English
- Earth's rate correction
1, record 17, English, Earth%27s%20rate%20correction
correct
Record 17, Abbreviations, English
Record 17, Synonyms, English
Record 17, Textual support, English
Record number: 17, Textual support number: 1 DEF
A command rate applied to a gyro to compensate for the rotation of the Earth with respect to the gyro input axis. 2, record 17, English, - Earth%27s%20rate%20correction
Record 17, Key term(s)
- Earth rate correction
Record 17, French
Record 17, Domaine(s)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 17, Main entry term, French
- correction de la rotation terrestre
1, record 17, French, correction%20de%20la%20rotation%20terrestre
correct, feminine noun
Record 17, Abbreviations, French
Record 17, Synonyms, French
- correction de la rotation de la Terre 2, record 17, French, correction%20de%20la%20rotation%20de%20la%20Terre
correct, feminine noun
Record 17, Textual support, French
Record number: 17, Textual support number: 1 CONT
La géométrie des images LANDSAT TM est très différente de celle de SPOT. En effet le mode de prise de vue par balayage mécanique (scanning) perpendiculairement à la trace du satellite peut induire des déformations particulières dont les corrections sont plus complexes. [...] Les niveaux 3 et 4 incluent : des corrections des variations de vitesse du miroir (polynôme de degré 5) à l'aller et au retour des différentes lignes de balayage; la correction de la rotation de la Terre; la correction des effets panoramiques et de courbure de la Terre. 3, record 17, French, - correction%20de%20la%20rotation%20terrestre
Record 17, Spanish
Record 17, Textual support, Spanish
Record 18 - internal organization data 2002-07-16
Record 18, English
Record 18, Subject field(s)
- General Mechanics (Physics)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
- Ship Piloting
Record 18, Main entry term, English
- degree of freedom
1, record 18, English, degree%20of%20freedom
correct
Record 18, Abbreviations, English
Record 18, Synonyms, English
- degree-of-freedom 2, record 18, English, degree%2Dof%2Dfreedom
correct
- DOF 2, record 18, English, DOF
correct
- DOF 2, record 18, English, DOF
Record 18, Textual support, English
Record number: 18, Textual support number: 1 DEF
Specifically, of a gyro the number of orthogonal axes about which the spin axis is free to rotate. 3, record 18, English, - degree%20of%20freedom
Record number: 18, Textual support number: 1 CONT
A gyroscope may be given one, two or three degrees of freedom, according to the mode of suspension. 4, record 18, English, - degree%20of%20freedom
Record 18, French
Record 18, Domaine(s)
- Mécanique générale (Physique)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
- Pilotage des navires
Record 18, Main entry term, French
- degré de liberté
1, record 18, French, degr%C3%A9%20de%20libert%C3%A9
correct, masculine noun
Record 18, Abbreviations, French
Record 18, Synonyms, French
Record 18, Textual support, French
Record number: 18, Textual support number: 1 DEF
On appelle degré de liberté d'un solide par rapport à un autre le nombre de mouvements élémentaires indépendants (3 rotations et 3 translations) entre les deux solides. 2, record 18, French, - degr%C3%A9%20de%20libert%C3%A9
Record number: 18, Textual support number: 1 CONT
Un solide est un corps dont les différents points restent à des distances constantes les uns des autres au cours du mouvement. Un solide pouvant se mouvoir librement a sa position déterminée par la donnée de six paramètres : la position d'un point (trois coordonnées) et trois angles qui, dans le cas général, sont les angles d'Euler et, plus souvent, des angles adaptés au solide (par exemple pour un bateau, des angles correspondant au changement de cap, au tangage et au roulis). On dit que, dans le cas le plus général de mouvement, le solide possède six degrés de liberté. Des liaisons peuvent réduire les mouvements possibles et, en conséquence, diminuer le nombre de degrés de liberté; ainsi un solide en rotation autour d'un axe fixe à un degré de liberté. 3, record 18, French, - degr%C3%A9%20de%20libert%C3%A9
Record number: 18, Textual support number: 2 CONT
Degrés de liberté. Le carter du gyroscope peut être lié au bâti qui le supporte de deux façons : la liaison est telle qu'elle autorise un mouvement de rotation autour d'un seul axe, le gyroscope est dit à un degré de liberté; la liaison est telle qu'elle autorise deux mouvements de rotation autour de deux axes concourants, le gyroscope est dit à deux degrés de liberté. 4, record 18, French, - degr%C3%A9%20de%20libert%C3%A9
Record 18, Spanish
Record 18, Textual support, Spanish
Record 19 - internal organization data 2002-07-16
Record 19, English
Record 19, Subject field(s)
- The Earth (Astronomy)
- Aircraft Piloting and Navigation
- Ship Piloting
- Cartography
Record 19, Main entry term, English
- convergence
1, record 19, English, convergence
correct
Record 19, Abbreviations, English
Record 19, Synonyms, English
- convergency of the meridians 2, record 19, English, convergency%20of%20the%20meridians
correct
- meridian convergence 3, record 19, English, meridian%20convergence
correct
- convergence of meridians 4, record 19, English, convergence%20of%20meridians
correct
Record 19, Textual support, English
Record number: 19, Textual support number: 1 DEF
The phenomenon where the distance between meridians (lines of longitude) decreases as they near the pole. 5, record 19, English, - convergence
Record number: 19, Textual support number: 1 CONT
Meridian convergency error is caused... by the fact that lines of longitude(meridians) converge as they approach the poles. If the spin axis of a D. G. [directional gyro] is aligned with a meridian at one point on the earth's surface and then flown to a different location in any direction other than due north or south, it will remain aligned with the original meridian because of it's tendency to remain in one orientation in space. Due to the convergency of the meridians, the gyro will not be aligned with the destination meridian. The angle between the D. G. spin axis and the destination meridian is the convergency error. 6, record 19, English, - convergence
Record 19, French
Record 19, Domaine(s)
- Terre (Astronomie)
- Pilotage et navigation aérienne
- Pilotage des navires
- Cartographie
Record 19, Main entry term, French
- convergence des méridiens
1, record 19, French, convergence%20des%20m%C3%A9ridiens
correct, feminine noun
Record 19, Abbreviations, French
Record 19, Synonyms, French
Record 19, Textual support, French
Record number: 19, Textual support number: 1 CONT
[...] l'erreur de convergence des méridiens est produite par le fait que les lignes de longitude (méridiens) convergent en s'approchant des pôles. En supposant que l'axe de rotation d'un gyroscope directionnel (D.G.) soit aligné sur un méridien en un point donné de la terre, et puis qu'on le transporte en un endroit différent autre que vers le nord ou le sud, l'axe de ce dernier restera aligné sur le méridien d'origine, vue sa propriété de demeurer fixe dans l'espace. Donc on peut voir qu'à cause de la convergence des méridiens, un gyroscope ne peut demeurer aligné sur le méridien de destination. L'angle formé entre l'axe de rotation du gyroscope (D.G.) et le méridien de destination est appelé «erreur de convergence des méridiens». 2, record 19, French, - convergence%20des%20m%C3%A9ridiens
Record number: 19, Textual support number: 2 CONT
On utilise une représentation plane de la terre ou projection afin : de représenter sur une surface plane une partie d'un modèle ellipsoïdal de la surface de la terre. [...] Dans la plupart des projections, le Nord de la projection n'indique pas la direction du pôle Nord géographique. On introduit alors la notion de convergence des méridiens définie comme suit : la convergence des méridiens en un point est le gisement de l'image (dans la projection) du méridien qui passe par ce point. 3, record 19, French, - convergence%20des%20m%C3%A9ridiens
Record 19, Spanish
Record 19, Campo(s) temático(s)
- Tierra (Astronomía)
- Pilotaje y navegación aérea
- Pilotaje de buques
- Cartografía
Record 19, Main entry term, Spanish
- convergencia de meridianos
1, record 19, Spanish, convergencia%20de%20meridianos
feminine noun
Record 19, Abbreviations, Spanish
Record 19, Synonyms, Spanish
Record 19, Textual support, Spanish
Record 20 - internal organization data 2002-07-16
Record 20, English
Record 20, Subject field(s)
- Couplings (Mechanical Components)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 20, Main entry term, English
- gimbal lock
1, record 20, English, gimbal%20lock
correct
Record 20, Abbreviations, English
Record 20, Synonyms, English
Record 20, Textual support, English
Record number: 20, Textual support number: 1 DEF
A condition of a two-degree-of-freedom gyro wherein the alignment of the spin axis with an axis-of-freedom deprives the gyro of a degree-of-freedom and, therefore, of its useful properties. 2, record 20, English, - gimbal%20lock
Record number: 20, Textual support number: 1 CONT
Gimbal lock is peculiar to a three-axis, three gimbal platform. In this condition, two of the gimbals become aligned when the elevation angle, say [theta], reaches 90°. The equations of motion in this case are no longer analytic, and the gimbals provide only two-degrees-of-freedom. Gimbal lock is avoided in a four-gimbal, all-attitude platform, thus maintaining orthogonality in the two inner gimbals. 3, record 20, English, - gimbal%20lock
Record 20, French
Record 20, Domaine(s)
- Accouplements (Composants mécaniques)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 20, Main entry term, French
- verrouillage du cardan
1, record 20, French, verrouillage%20du%20cardan
masculine noun
Record 20, Abbreviations, French
Record 20, Synonyms, French
Record 20, Textual support, French
Record number: 20, Textual support number: 1 CONT
La rotation précise sans verrouillage du cardan (gimbal lock) est assurée par l'interpolation des quaternions. 1, record 20, French, - verrouillage%20du%20cardan
Record 20, Spanish
Record 20, Textual support, Spanish
Record 21 - internal organization data 2002-07-16
Record 21, English
Record 21, Subject field(s)
- General Mechanics (Physics)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
Record 21, Main entry term, English
- commanded precession rate
1, record 21, English, commanded%20precession%20rate
correct
Record 21, Abbreviations, English
Record 21, Synonyms, English
Record 21, Textual support, English
Record number: 21, Textual support number: 1 CONT
Controlled pendulum. The gyro spinning wheel is running at constant speed. The precession drive, which lies in a plane symmetric with respect to the gimbal is controlled to create a precession rate of the spinning wheel. Measurement of the rotation angle around the horizontal axis perpendicular to the symmetry plane of the gimbal is used to perform the precession control. This control aims to keep the center of gravity of the gimbal assembly over the rotation axis. The commanded precession rate is such that the gyroscopic torque counterbalances the gravity torque and the disturbing torques... 1, record 21, English, - commanded%20precession%20rate
Record 21, French
Record 21, Domaine(s)
- Mécanique générale (Physique)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
Record 21, Main entry term, French
- vitesse de précession commandée
1, record 21, French, vitesse%20de%20pr%C3%A9cession%20command%C3%A9e
correct, feminine noun
Record 21, Abbreviations, French
Record 21, Synonyms, French
Record 21, Textual support, French
Record number: 21, Textual support number: 1 CONT
Pendule asservi. La toupie gyroscopique est entraînée à vitesse constante. Le moteur de précession qui est dans le plan de symétrie du berceau est commandé pour produire une vitesse de basculement de la toupie. La mesure de l'angle de rotation autour de l'axe horizontal perpendiculaire au plan de symétrie du berceau est utilisée pour réaliser la commande du moteur de précession. Cette commande a pour but de maintenir le centre de gravité de l'ensemble à la verticale de l'axe de rotation horizontal. La vitesse de précession commandée est telle que le couple gyroscopique produit contre-balance le couple de gravité et les couples perturbateurs [...] 1, record 21, French, - vitesse%20de%20pr%C3%A9cession%20command%C3%A9e
Record 21, Spanish
Record 21, Textual support, Spanish
Record 22 - internal organization data 2002-07-16
Record 22, English
Record 22, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 22, Main entry term, English
- anisoinertia
1, record 22, English, anisoinertia
correct
Record 22, Abbreviations, English
Record 22, Synonyms, English
Record 22, Textual support, English
Record number: 22, Textual support number: 1 DEF
The inequality of the moments of inertia about the gimbal principal axes. 2, record 22, English, - anisoinertia
Record number: 22, Textual support number: 1 CONT
Typically, the gyroscope model will consist of the following error sources: (1) Anisoinertia, (2) Angular quantization, (3) Bias, (4) Exponentially correlated random drift, (5) G and G-squared coefficients, (6) Input axis misalignment, (7) Scale factor error, and (8) Turn-on transient. 3, record 22, English, - anisoinertia
Record number: 22, Textual support number: 1 OBS
When the gyro is subjected to angular rates about the input and spin axes, and the moments of inertia about these axes are unequal, a torque is developed about the output axis that is proportional to the difference of the inertias about the input and spin axes multiplied by the product of the rates about these two axes. 2, record 22, English, - anisoinertia
Record 22, French
Record 22, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 22, Main entry term, French
- anisoinertie
1, record 22, French, anisoinertie
correct, feminine noun
Record 22, Abbreviations, French
Record 22, Synonyms, French
- aniso-inertie 2, record 22, French, aniso%2Dinertie
correct, feminine noun
Record 22, Textual support, French
Record number: 22, Textual support number: 1 CONT
[Gyroscope] Influence des vibrations angulaires. a. erreur d'aniso-inertie. [...] b. erreurs dues aux mouvements coniques [...] 2, record 22, French, - anisoinertie
Record number: 22, Textual support number: 1 PHR
Erreur d'aniso-inertie. 2, record 22, French, - anisoinertie
Record 22, Spanish
Record 22, Textual support, Spanish
Record 23 - internal organization data 2002-07-16
Record 23, English
Record 23, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 23, Main entry term, English
- axis of freedom
1, record 23, English, axis%20of%20freedom
correct
Record 23, Abbreviations, English
Record 23, Synonyms, English
Record 23, Textual support, English
Record number: 23, Textual support number: 1 DEF
A rotational axis that provides a degree-of-freedom. 2, record 23, English, - axis%20of%20freedom
Record number: 23, Textual support number: 2 DEF
Of a gyro : an axis about which a gimbal provides a degree of freedom. 3, record 23, English, - axis%20of%20freedom
Record 23, Key term(s)
- axis-of-freedom
Record 23, French
Record 23, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 23, Main entry term, French
- axe de liberté
1, record 23, French, axe%20de%20libert%C3%A9
correct, masculine noun
Record 23, Abbreviations, French
Record 23, Synonyms, French
Record 23, Textual support, French
Record number: 23, Textual support number: 1 CONT
Quelles sont les possibilités de mouvement d'un corps dans l'espace ? Il y a 6 axes de liberté. D'abord en translation : Avant - arrière (X); Droite - gauche (Y); Haut - bas (Z). Et, en rotation : Basculer d'avant en arrière (Tangage); Basculer de droite à gauche (Roulis); Pivoter comme les aiguilles d'une montre (Lacet). 2, record 23, French, - axe%20de%20libert%C3%A9
Record 23, Spanish
Record 23, Textual support, Spanish
Record 24 - internal organization data 2002-07-16
Record 24, English
Record 24, Subject field(s)
- The Earth (Astronomy)
- Geophysics
- General Mechanics (Physics)
Record 24, Main entry term, English
- apparent precession
1, record 24, English, apparent%20precession
correct, NATO, standardized
Record 24, Abbreviations, English
Record 24, Synonyms, English
- apparent wander 2, record 24, English, apparent%20wander
correct, NATO, standardized
- apparent drift 3, record 24, English, apparent%20drift
Record 24, Textual support, English
Record number: 24, Textual support number: 1 DEF
The apparent deflection of the gyro axis, relative to the earth, due to the rotating effect of the earth and not due to any applied force. 4, record 24, English, - apparent%20precession
Record number: 24, Textual support number: 2 DEF
Apparent change in the direction of the axis of rotation of a spinning body, such as a gyroscope, due to rotation of the earth. 5, record 24, English, - apparent%20precession
Record number: 24, Textual support number: 1 OBS
apparent precession; apparent wander: terms and definition standardized by NATO. 6, record 24, English, - apparent%20precession
Record 24, French
Record 24, Domaine(s)
- Terre (Astronomie)
- Géophysique
- Mécanique générale (Physique)
Record 24, Main entry term, French
- précession apparente
1, record 24, French, pr%C3%A9cession%20apparente
correct, feminine noun, NATO, standardized, officially approved
Record 24, Abbreviations, French
Record 24, Synonyms, French
- dérive apparente 2, record 24, French, d%C3%A9rive%20apparente
feminine noun
Record 24, Textual support, French
Record number: 24, Textual support number: 1 DEF
Déviation apparente de l'axe d'un gyroscope par rapport à la terre. Elle est due à la rotation terrestre et non pas à une force appliquée au gyroscope. 3, record 24, French, - pr%C3%A9cession%20apparente
Record number: 24, Textual support number: 1 OBS
précession apparente : terme et définition normalisés par l'OTAN. 4, record 24, French, - pr%C3%A9cession%20apparente
Record number: 24, Textual support number: 2 OBS
précession apparente : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - opérations aériennes. 4, record 24, French, - pr%C3%A9cession%20apparente
Record 24, Spanish
Record 24, Campo(s) temático(s)
- Tierra (Astronomía)
- Geofísica
- Mecánica general (Física)
Record 24, Main entry term, Spanish
- precesión aparente
1, record 24, Spanish, precesi%C3%B3n%20aparente
correct, feminine noun
Record 24, Abbreviations, Spanish
Record 24, Synonyms, Spanish
Record 24, Textual support, Spanish
Record number: 24, Textual support number: 1 DEF
Desviación aparente del eje del giróscopo respecto a la tierra, debido al efecto de la rotación de la tierra y no a causa de alguna fuerza aplicada. 2, record 24, Spanish, - precesi%C3%B3n%20aparente
Record 25 - internal organization data 2002-07-16
Record 25, English
Record 25, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 25, Main entry term, English
- gyro housing
1, record 25, English, gyro%20housing
correct
Record 25, Abbreviations, English
Record 25, Synonyms, English
- sealed housing 2, record 25, English, sealed%20housing
correct
- sealed gyro housing 3, record 25, English, sealed%20gyro%20housing
correct
- gyroscope housing 4, record 25, English, gyroscope%20housing
correct
- housing 2, record 25, English, housing
correct
Record 25, Textual support, English
Record number: 25, Textual support number: 1 CONT
The rotor of the air-driven gyro is mounted in a sealed housing. Filtered air is brought into the gyro housing through passages in the rear pivot, the gimbal ring, and the side pivots. The air then blows against the rotor through two angled nozzles on opposite sides of the housing. The circumference of the rotor is machined with dozens of little bucket-like cutouts which allow the airflow to spin the rotor like a waterwheel (but a whole lot faster). Having done its work, the air then exits through exhaust ports on the lower part of the sealed gyro housing, whereupon it is sucked out of the instrument case by the vacuum pump. 3, record 25, English, - gyro%20housing
Record number: 25, Textual support number: 2 CONT
Attitude indicator components(vacuum-driven). The rotor, mounted in a sealed housing, spins in a horizontal plane about the vertical axis. The housing pivots about the lateral axis on a gimbal, which in turn is free to pivot about the longitudinal axis. The instrument case is the third gimbal necessary for universal mounting. The horizon bar is linked to the gyro by a lever, attached to a pivot on the rear of the gimbal frame and connected to the gyro housing by a guide pin. 5, record 25, English, - gyro%20housing
Record 25, Key term(s)
- sealed gyroscope housing
Record 25, French
Record 25, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 25, Main entry term, French
- carter
1, record 25, French, carter
correct, masculine noun
Record 25, Abbreviations, French
Record 25, Synonyms, French
- caisse du gyroscope 2, record 25, French, caisse%20du%20gyroscope
correct, feminine noun
- carter du gyroscope 2, record 25, French, carter%20du%20gyroscope
correct, masculine noun
- carter étanche 3, record 25, French, carter%20%C3%A9tanche
correct, masculine noun
- élément sensible 4, record 25, French, %C3%A9l%C3%A9ment%20sensible
correct, masculine noun
- cage de gyroscope 5, record 25, French, cage%20de%20gyroscope
correct, feminine noun
- cage 6, record 25, French, cage
correct, feminine noun
- solide 7, record 25, French, solide
masculine noun
Record 25, Textual support, French
Record number: 25, Textual support number: 1 CONT
On appellera «carter» le solide [...] qui porte le gyro au moyen de paliers A et A'. Cette dénomination de carter est parfaitement adaptée puisque le gyro doit être protégé des poussières et régulé en température. De plus la grande vitesse de rotation présente un danger pour l'environnement extérieur. [...] Le carter s'appelle aussi «élément sensible», car c'est lui qui reçoit directement les effets du gyro et lui seul est vraiment observable. Sa structure sera donc agrémentée d'équipements divers : moteur d'entraînement du gyro, alimentation électrique de ce moteur, capteur de vitesse angulaire axiale [...] 8, record 25, French, - carter
Record number: 25, Textual support number: 2 CONT
Gyroscopes libres. Le problème consiste à suspendre la toupie en minimisant l'incertitude [delta]C sur le couple qui lui est appliqué. [...] des recherches technologiques ont favorisé l'apparition de multiples réalisations parmi lesquelles on peut citer : la suspension par cardan [...]; la suspension par flottaison; la poussée d'Archimède, agissant sur les anneaux de cardan et sur un carter étanche renfermant la toupie, soulage les paliers, qui peuvent alors être équipés d'ensembles pivot-rubis; [...] 9, record 25, French, - carter
Record number: 25, Textual support number: 3 CONT
Un gyromètre est un capteur électromécanique, dont le carter (élément sensible) [...] possède un degré de liberté en rotation (autour de l'axe X de sortie), par rapport à un boîtier dont on veut mesurer l'angle de rotation autour d'un axe dit d'entrée Y. 10, record 25, French, - carter
Record number: 25, Textual support number: 1 OBS
Ne pas confondre avec le boîtier. 11, record 25, French, - carter
Record 25, Spanish
Record 25, Textual support, Spanish
Record 26 - internal organization data 2002-07-05
Record 26, English
Record 26, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 26, Main entry term, English
- gyroscopic torque
1, record 26, English, gyroscopic%20torque
correct, officially approved
Record 26, Abbreviations, English
Record 26, Synonyms, English
Record 26, Textual support, English
Record number: 26, Textual support number: 1 CONT
A CMG(control moment gyro) is an actuator consisting of a spinner with a sustained kinetic moment modulus h and one or two motor-driven tilt axes. One-axis CMGs are used to generate very high dynamic moments. The produced gyroscopic torque is proportional to h and to the precession rate(i. e. tilting rate). It is orthogonal to the precession axis and is directly transmitted to the satellite by the tilt motor bearings. 2, record 26, English, - gyroscopic%20torque
Record number: 26, Textual support number: 2 CONT
A novel design for an accelerometer using gyroscopic torque to null a pendulous proof mass is being micromachined. 3, record 26, English, - gyroscopic%20torque
Record number: 26, Textual support number: 1 OBS
gyroscopic torque: term officially approved by the International Civil Aviation Organization (ICAO). 4, record 26, English, - gyroscopic%20torque
Record 26, French
Record 26, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 26, Main entry term, French
- couple gyroscopique
1, record 26, French, couple%20gyroscopique
correct, masculine noun, officially approved
Record 26, Abbreviations, French
Record 26, Synonyms, French
Record 26, Textual support, French
Record number: 26, Textual support number: 1 CONT
Couple gyroscopique. C'est [...] une conséquence de l'inertie du gyroscope : un gyroscope réagit par un couple chaque fois que l'on veut lui imposer une rotation suivant un axe différent de son axe de rotation propre. Ce couple s'appelle couple gyroscopique et tend en général à faire basculer l'axe du rotor. 2, record 26, French, - couple%20gyroscopique
Record number: 26, Textual support number: 2 CONT
En présence d'un gyroscope on peut considérer ce gyroscope bloqué sur son carter (rotation «oubliée»), à condition de rajouter au moment des forces extérieures un moment supplémentaire, le couple gyroscopique, compensant les effets de la rotation «oubliée». 2, record 26, French, - couple%20gyroscopique
Record number: 26, Textual support number: 1 OBS
couple gyroscopique : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI). 3, record 26, French, - couple%20gyroscopique
Record 26, Spanish
Record 26, Campo(s) temático(s)
- Mecánica general (Física)
- Pilotaje y navegación aérea
- Instrumentos de navegación
- Instrumentos y equipo de vuelo (Industria aeronáutica)
Record 26, Main entry term, Spanish
- par giroscópico
1, record 26, Spanish, par%20girosc%C3%B3pico
correct, masculine noun, officially approved
Record 26, Abbreviations, Spanish
Record 26, Synonyms, Spanish
Record 26, Textual support, Spanish
Record number: 26, Textual support number: 1 OBS
par giroscópico : término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI). 2, record 26, Spanish, - par%20girosc%C3%B3pico
Record 27 - internal organization data 2002-04-17
Record 27, English
Record 27, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 27, Main entry term, English
- autoerection
1, record 27, English, autoerection
correct
Record 27, Abbreviations, English
Record 27, Synonyms, English
Record 27, Textual support, English
Record number: 27, Textual support number: 1 DEF
The process by which gimbal axis friction causes the spin axis of a free gyro to tend to align with the axis about which the case is rotated. The resulting drift is a function of the angular displacement between the spin axis and the rotation axis. 2, record 27, English, - autoerection
Record number: 27, Textual support number: 1 OBS
Honeywell Displacement Gyroscope. Model 0048B5, Series 19. Synchro outputs, and has onboard auto erection circuits to level gyro in normal flight conditions. 3, record 27, English, - autoerection
Record 27, Key term(s)
- auto-erection
- auto erection
Record 27, French
Record 27, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 27, Main entry term, French
- auto-érection
1, record 27, French, auto%2D%C3%A9rection
correct, feminine noun
Record 27, Abbreviations, French
Record 27, Synonyms, French
Record 27, Textual support, French
Record number: 27, Textual support number: 1 OBS
L'horizon gyroscopique, ou horizon artificiel [...] est essentiellement un gyroscope à deux axes de cardan [...] La verticalité de l'axe de la toupie [delta] est approximativement assurée par un érecteur (mécanique, électro-mécanique, pneumatique) produisant une raideur en quadrature de signe convenable. 2, record 27, French, - auto%2D%C3%A9rection
Record 27, Key term(s)
- autoérection
Record 27, Spanish
Record 27, Textual support, Spanish
Record 28 - internal organization data 2002-04-17
Record 28, English
Record 28, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 28, Main entry term, English
- controlled pendulum
1, record 28, English, controlled%20pendulum
correct
Record 28, Abbreviations, English
Record 28, Synonyms, English
Record 28, Textual support, English
Record number: 28, Textual support number: 1 CONT
Controlled pendulum. The gyro spinning wheel is running at constant speed. The precession drive, which lies in a plane symmetric with respect to the gimbal is controlled to create a precession rate of the spinning wheel. Measurement of the rotation angle around the horizontal axis perpendicular to the symmetry plane of the gimbal is used to perform the precession control. This control aims to keep the center of gravity of the gimbal assembly over the rotation axis. The commanded precession rate is such that the gyroscopic torque counterbalances the gravity torque and the disturbing torques... 1, record 28, English, - controlled%20pendulum
Record 28, French
Record 28, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 28, Main entry term, French
- pendule asservi
1, record 28, French, pendule%20asservi
correct, masculine noun
Record 28, Abbreviations, French
Record 28, Synonyms, French
Record 28, Textual support, French
Record number: 28, Textual support number: 1 CONT
Pendule asservi. La toupie gyroscopique est entraînée à vitesse constante. Le moteur de précession qui est dans le plan de symétrie du berceau est commandé pour produire une vitesse de basculement de la toupie. La mesure de l'angle de rotation autour de l'axe horizontal perpendiculaire au plan de symétrie du berceau est utilisée pour réaliser la commande du moteur de précession. Cette commande a pour but de maintenir le centre de gravité de l'ensemble à la verticale de l'axe de rotation horizontal. La vitesse de précession commandée est telle que le couple gyroscopique produit contre-balance le couple de gravité et les couples perturbateurs [...] 1, record 28, French, - pendule%20asservi
Record 28, Spanish
Record 28, Textual support, Spanish
Record 29 - internal organization data 2002-04-17
Record 29, English
Record 29, Subject field(s)
- Measuring Instruments (Engineering)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
Record 29, Main entry term, English
- dynamically tuned gyro
1, record 29, English, dynamically%20tuned%20gyro
correct
Record 29, Abbreviations, English
Record 29, Synonyms, English
- dynamically tuned gyroscope 2, record 29, English, dynamically%20tuned%20gyroscope
correct
- DTG 2, record 29, English, DTG
correct
- DTG 2, record 29, English, DTG
- tuned rotor gyro 3, record 29, English, tuned%20rotor%20gyro
correct
- tuned rotor gyroscope 4, record 29, English, tuned%20rotor%20gyroscope
correct
- tuned-rotor gyroscope 5, record 29, English, tuned%2Drotor%20gyroscope
correct
- tuned-gimbal gyroscope 6, record 29, English, tuned%2Dgimbal%20gyroscope
correct
- dry gyro 7, record 29, English, dry%20gyro
correct
- dry gyroscope 8, record 29, English, dry%20gyroscope
correct
Record 29, Textual support, English
Record number: 29, Textual support number: 1 DEF
A two-degree-of-freedom gyro in which a dynamically tuned flexure and gimbal mechanism both supports the rotor and provides angular freedom about axes perpendicular to the spin axis. 3, record 29, English, - dynamically%20tuned%20gyro
Record number: 29, Textual support number: 1 CONT
The "dynamic tuning" of a dynamically tuned gyroscope (DTG) refers to a clever gimbal configuration that balances the torques from the support flexure with dynamic spring torques created by gimbal "flutter" while the gyro rotor spins. This configuration allows the gyro rotor to spin to a "free" rotor in two axes. 2, record 29, English, - dynamically%20tuned%20gyro
Record 29, French
Record 29, Domaine(s)
- Instruments de mesure (Ingénierie)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
Record 29, Main entry term, French
- gyroscope à suspension dynamiquement accordée
1, record 29, French, gyroscope%20%C3%A0%20suspension%20dynamiquement%20accord%C3%A9e
correct, masculine noun
Record 29, Abbreviations, French
Record 29, Synonyms, French
- gyroscope à suspension dynamique 2, record 29, French, gyroscope%20%C3%A0%20suspension%20dynamique
correct, masculine noun
- gyroscope accordé 3, record 29, French, gyroscope%20accord%C3%A9
correct, masculine noun
- gyroscope mécanique à suspension dynamique 4, record 29, French, gyroscope%20m%C3%A9canique%20%C3%A0%20suspension%20dynamique
correct, masculine noun
- gyroscope à suspension élastique compensée 5, record 29, French, gyroscope%20%C3%A0%20suspension%20%C3%A9lastique%20compens%C3%A9e
correct, masculine noun
- gyroscope SEC 5, record 29, French, gyroscope%20SEC
correct, masculine noun
- gyroscope sec 6, record 29, French, gyroscope%20sec
correct, masculine noun
- gyroscope à suspension compensée 5, record 29, French, gyroscope%20%C3%A0%20suspension%20compens%C3%A9e
correct, masculine noun
- gyroscope à suspension accordée 5, record 29, French, gyroscope%20%C3%A0%20suspension%20accord%C3%A9e
masculine noun
- gyroscope à rotor syntonisé 7, record 29, French, gyroscope%20%C3%A0%20rotor%20syntonis%C3%A9
masculine noun
- gyroscope à suspension dynamique accordée 8, record 29, French, gyroscope%20%C3%A0%20suspension%20dynamique%20accord%C3%A9e
masculine noun
- gyroscope à rotor accordé 7, record 29, French, gyroscope%20%C3%A0%20rotor%20accord%C3%A9
masculine noun
Record 29, Textual support, French
Record number: 29, Textual support number: 1 CONT
Les gyroscopes à suspension dynamiquement accordée [...] sont des gyroscopes «deux axes», à faible débattement angulaire, dont la toupie est reliée au boîtier par un (ou deux) joints de Hooke; la charnière ainsi constituée se trouve à l'intérieur de la toupie. [...] Ces appareils présentent les avantages suivants : pas de liquide de flottaison (gyroscopes dits «secs»), pas de fils d'amenée de courant à l'élément sensible, pas de roulements à billes dans l'élément sensible, moteur d'entraînement séparé de l'élément sensible. 6, record 29, French, - gyroscope%20%C3%A0%20suspension%20dynamiquement%20accord%C3%A9e
Record number: 29, Textual support number: 2 CONT
Équations de la gyroscopie [...] Suspension dynamique accordée [...] le principe : Les paliers des articulations S1-S2 et S2-S3 ne sont plus des roulements, mais remplacés par [des] joints de Hooke ou encore des barres de torsion élastiques. Un calcul complexe montre qu'à une vitesse précise dite d'accord, la raideur des joints est compensée [...] par le couple des forces d'inertie centrifuge et la suspension ne présente plus alors aucune rigidité. Les débattements de la toupie, en orientation, sont limités à quelques degrés. La condition d'accord définissant la vitesse correcte relie les caractéristiques des barres de torsion et un moment d'inertie particulier de l'anneau interne. On l'appelle la condition de tuning et c'est ce qui donne à la technique le nom de gyroscope accordé. 9, record 29, French, - gyroscope%20%C3%A0%20suspension%20dynamiquement%20accord%C3%A9e
Record number: 29, Textual support number: 1 OBS
Suspension dynamique accordée [...] Il y a disparition du liquide de flottaison, le gyro est dit «dry gyro». L'usage de ces gyros est réservé aux centrales inertielles. 9, record 29, French, - gyroscope%20%C3%A0%20suspension%20dynamiquement%20accord%C3%A9e
Record number: 29, Textual support number: 2 OBS
[Noter] le jeu de mots entre notre «gyroscope SEC» et le «dry gyro» de la littérature anglo-saxonne, représentant un capteur sans liquide de flottaison (c'est bien le cas du gyroscope à suspension compensée); [...] 5, record 29, French, - gyroscope%20%C3%A0%20suspension%20dynamiquement%20accord%C3%A9e
Record 29, Key term(s)
- dry gyro
- gyroscope dit sec
Record 29, Spanish
Record 29, Textual support, Spanish
Record 30 - internal organization data 2002-04-17
Record 30, English
Record 30, Subject field(s)
- Measuring Instruments (Engineering)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 30, Main entry term, English
- controlled gyroscope
1, record 30, English, controlled%20gyroscope
correct
Record 30, Abbreviations, English
Record 30, Synonyms, English
- slaved gyro 2, record 30, English, slaved%20gyro
correct
Record 30, Textual support, English
Record number: 30, Textual support number: 1 CONT
Controlled gyroscopes fall into three categories : north-seeking, directional, and gyrovertical. The north-seeking gyro is used for marine gyrocompasses... The directional gyroscope is used in aircraft and is sometimes called a self-levelling free gyroscope corrected for drift... The gyrovertical has its spin axis vertical and is used to detect and measure angles of roll and pitch. 1, record 30, English, - controlled%20gyroscope
Record number: 30, Textual support number: 1 OBS
A free gyro that is not slaved to any Earth reference (as the vertical and directional gyros and the gyrocompass are) will tend to maintain a fixed direction in inertial space, that is, with respect to fixed stars. 3, record 30, English, - controlled%20gyroscope
Record 30, Key term(s)
- controlled gyro
- slaved gyroscope
Record 30, French
Record 30, Domaine(s)
- Instruments de mesure (Ingénierie)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 30, Main entry term, French
- gyroscope asservi
1, record 30, French, gyroscope%20asservi
correct, masculine noun
Record 30, Abbreviations, French
Record 30, Synonyms, French
- gyro asservi 2, record 30, French, gyro%20asservi
correct, masculine noun
Record 30, Textual support, French
Record number: 30, Textual support number: 1 CONT
L'horizon artificiel. Il mesure simultanément une assiette et une inclinaison. L'utilisation d'un gyroscope asservi à la verticale lui permet de mesurer les angles compris entre l'axe du gyroscope et les axes liés à l'avion. 3, record 30, French, - gyroscope%20asservi
Record 30, Spanish
Record 30, Textual support, Spanish
Record 31 - internal organization data 2002-01-10
Record 31, English
Record 31, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 31, Main entry term, English
- two-axis CMG
1, record 31, English, two%2Daxis%20CMG
correct
Record 31, Abbreviations, English
Record 31, Synonyms, English
- two-axis control moment gyro 2, record 31, English, two%2Daxis%20control%20moment%20gyro
correct
Record 31, Textual support, English
Record number: 31, Textual support number: 1 CONT
A CMG(control moment gyro) is an actuator consisting of a spinner with a sustained kinetic moment modulus h and one or two motor-driven tilt axes. One-axis CMGs are used to generate very high dynamic moments. The produced gyroscopic torque is proportional to h and to the precession rate(i. e. tilting rate). It is orthogonal to the precession axis and is directly transmitted to the satellite by the tilt motor bearings. Two-axis CMGs are less used and have a limited dynamic moment since the produced gyroscopic torque has to be partially compensated by the tilt motor. 1, record 31, English, - two%2Daxis%20CMG
Record 31, Key term(s)
- 2-axis CMG
- 2-axis control moment gyro
Record 31, French
Record 31, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 31, Main entry term, French
- gyrodyne 2-axes
1, record 31, French, gyrodyne%202%2Daxes
correct, masculine noun
Record 31, Abbreviations, French
Record 31, Synonyms, French
- actionneur gyroscopique 2-axes 2, record 31, French, actionneur%20gyroscopique%202%2Daxes
correct, masculine noun
Record 31, Textual support, French
Record number: 31, Textual support number: 1 CONT
On distingue les gyrodynes 1-axe (une seule vitesse cardan commandée par toupie, en précession) dont le couple moteur est directement transmis au satellite par les bâtis et les gyrodynes 2-axes montés sur un double cardan avec vitesses de précession et nutation commandées. Dans ce cas, l'effet d'amplification de couple --le fait qu'un faible couple autour de l'axe de précession produise un fort couple autour de l'axe perpendiculaire-- est moins important car le moteur de précession autour d'un des axes doit surpasser les couples de précession produits par l'autre. Les études menées au DCSD portent principalement sur les «grappes» : ensemble de gyrodynes 1-axe commandés simultanément. 1, record 31, French, - gyrodyne%202%2Daxes
Record number: 31, Textual support number: 1 OBS
Les gyrodynes : une technologie prometteuse pour la commande d'attitude des satellites. Également appelé actionneur gyroscopique, le gyrodyne est une commande d'attitude utilisant des actionneurs à fort couple dynamique. 3, record 31, French, - gyrodyne%202%2Daxes
Record 31, Key term(s)
- gyrodyne deux-axes
- actionneur gyroscopique deux-axes
Record 31, Spanish
Record 31, Textual support, Spanish
Record 32 - internal organization data 2001-12-20
Record 32, English
Record 32, Subject field(s)
- Field Artillery
- Weapon Systems
Record 32, Main entry term, English
- environmental control circuit
1, record 32, English, environmental%20control%20circuit
correct
Record 32, Abbreviations, English
Record 32, Synonyms, English
Record 32, Textual support, English
Record number: 32, Textual support number: 1 CONT
The azimuth gimbal consists of a stiff aluminium structure on which are mounted three single axis, floated rate integrating gyroscopes and three single axis force feedback accelerometers, together with an electronics card containing gyro and accelerometer pre-amplifiers, and environmental control circuits. 1, record 32, English, - environmental%20control%20circuit
Record number: 32, Textual support number: 1 OBS
These are part of the inertial platform fitted to PADS (Position and Azimuth Determining System for Artillery). 2, record 32, English, - environmental%20control%20circuit
Record 32, French
Record 32, Domaine(s)
- Artillerie de campagne
- Systèmes d'armes
Record 32, Main entry term, French
- circuit de régulation thermique
1, record 32, French, circuit%20de%20r%C3%A9gulation%20thermique
masculine noun
Record 32, Abbreviations, French
Record 32, Synonyms, French
Record 32, Textual support, French
Record number: 32, Textual support number: 1 CONT
Le cardan d'azimut est constitué par une structure d'aluminium rigide sur laquelle sont montés trois gyroscopes flottants intégrateurs à un degré de liberté, et trois accéléromètres à rappel de force à un degré de liberté, ainsi qu'une carte d'électronique, portant les préamplificateurs des gyros et des accéléromètres, et des circuits de régulation thermique. 1, record 32, French, - circuit%20de%20r%C3%A9gulation%20thermique
Record number: 32, Textual support number: 1 OBS
Ces trois éléments se trouvent dans la plate-forme inertielle du PADS (Position and Azimuth Determining System). 2, record 32, French, - circuit%20de%20r%C3%A9gulation%20thermique
Record 32, Spanish
Record 32, Textual support, Spanish
Record 33 - internal organization data 2001-09-20
Record 33, English
Record 33, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 33, Main entry term, English
- slaving torque
1, record 33, English, slaving%20torque
correct
Record 33, Abbreviations, English
Record 33, Synonyms, English
Record 33, Textual support, English
Record number: 33, Textual support number: 1 CONT
The amplifier is the coordination and distribution center for all system electrical signals. Remote compass transmitter signals arc phase detected to resolve for the 180-degree ambiguity and arc sent to the slaving torque motor to keep the gyro spins axis aligned with magnetic north-south. The amplifier also provides high voltage to the slaving torque motor for any periods of fast slaving;... 1, record 33, English, - slaving%20torque
Record number: 33, Textual support number: 1 OBS
slaving: The use of a torquer to maintain the orientation of the spin axis relative to an external reference, such as a pendulum or magnetic compass. 2, record 33, English, - slaving%20torque
Record 33, French
Record 33, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 33, Main entry term, French
- couple d'asservissement
1, record 33, French, couple%20d%27asservissement
correct, masculine noun
Record 33, Abbreviations, French
Record 33, Synonyms, French
Record 33, Textual support, French
Record number: 33, Textual support number: 1 CONT
Accéléromètre gyroscopique [...] On souhaite mesurer l'accélération suivant l'axe Z1. Le rôle du moteur Mo est alors de maintenir [thêta]=0, en exerçant un couple d'asservissement [tau] sur l'axe Z1 de l'armature externe. Il y a donc détection d'un écart angulaire et commande du couple de contre-réaction. 1, record 33, French, - couple%20d%27asservissement
Record 33, Spanish
Record 33, Textual support, Spanish
Record 34 - internal organization data 2001-09-14
Record 34, English
Record 34, Subject field(s)
- Lasers and Masers
- Optics
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
Record 34, Main entry term, English
- triangular cavity laser gyro
1, record 34, English, triangular%20cavity%20laser%20gyro
correct
Record 34, Abbreviations, English
Record 34, Synonyms, English
Record 34, Textual support, English
Record number: 34, Textual support number: 1 OBS
Specialized configurations-a triple XYZ axis triangular cavity laser in a solid glass block for an optical ring laser gyro, for example-also exist but are much much less common-you probably won’t find one of these at a local flea market! 2, record 34, English, - triangular%20cavity%20laser%20gyro
Record 34, French
Record 34, Domaine(s)
- Masers et lasers
- Optique
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
Record 34, Main entry term, French
- gyrolaser à cavité triangulaire
1, record 34, French, gyrolaser%20%C3%A0%20cavit%C3%A9%20triangulaire
correct, masculine noun
Record 34, Abbreviations, French
Record 34, Synonyms, French
- gyrolaser à cavité résonnante triangulaire 2, record 34, French, gyrolaser%20%C3%A0%20cavit%C3%A9%20r%C3%A9sonnante%20triangulaire
proposal, masculine noun
Record 34, Textual support, French
Record number: 34, Textual support number: 1 CONT
Le gyrolaser est un oscillateur optique dans lequel un laser émet deux ondes progressives indépendantes qui parcourent une cavité résonnante en sens contraire l'une de l'autre. Dans les gyrolasers des centrales Sagem [...] cette cavité a la forme d'un triangle équilatéral et trois électrodes (deux anodes et une cathode) excitent un mélange d'hélium et de néon créant ainsi un milieu amplificateur. Figure 3.82 : gyrolaser à cavité triangulaire [...] Des gyrolasers à cavité carrée ont aussi été développés. 1, record 34, French, - gyrolaser%20%C3%A0%20cavit%C3%A9%20triangulaire
Record 34, Key term(s)
- gyrolaser à cavité résonante triangulaire
Record 34, Spanish
Record 34, Textual support, Spanish
Record 35 - internal organization data 2001-09-14
Record 35, English
Record 35, Subject field(s)
- Lasers and Masers
- Optics
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
Record 35, Main entry term, English
- square optical cavity laser gyro
1, record 35, English, square%20optical%20cavity%20laser%20gyro
correct
Record 35, Abbreviations, English
Record 35, Synonyms, English
- square cavity laser gyro 1, record 35, English, square%20cavity%20laser%20gyro
correct
Record 35, Textual support, English
Record number: 35, Textual support number: 1 OBS
The Canterbury Ring Laser, built in the Department of Physics principally by Morrie Poulton and Clive Rowe under the guidance of Professor Hans Bilger of Oklahoma State University, is a large laser gyroscope with an unusually high frequency resolution... The Canterbury ring system has a nearly square optical cavity with an area of 0.7547 square metres and a perimeter of 3.477 m (and so a free spectral range of 86.22 MHz). 2, record 35, English, - square%20optical%20cavity%20laser%20gyro
Record number: 35, Textual support number: 2 OBS
Specialized configurations-a triple XYZ axis triangular cavity laser in a solid glass block for an optical ring laser gyro, for example-also exist but are much much less common-you probably won’t find one of these at a local flea market! 3, record 35, English, - square%20optical%20cavity%20laser%20gyro
Record 35, Key term(s)
- square optical cavity laser gyroscope
Record 35, French
Record 35, Domaine(s)
- Masers et lasers
- Optique
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
Record 35, Main entry term, French
- gyrolaser à cavité carrée
1, record 35, French, gyrolaser%20%C3%A0%20cavit%C3%A9%20carr%C3%A9e
correct, masculine noun
Record 35, Abbreviations, French
Record 35, Synonyms, French
Record 35, Textual support, French
Record number: 35, Textual support number: 1 CONT
Le gyrolaser est un oscillateur optique dans lequel un laser émet deux ondes progressives indépendantes qui parcourent une cavité résonnante en sens contraire l'une de l'autre. Dans les gyrolasers des centrales Sagem [...] cette cavité a la forme d'un triangle équilatéral et trois électrodes (deux anodes et une cathode) excitent un mélange d'hélium et de néon créant ainsi un milieu amplificateur. Des gyrolasers à cavité carrée ont aussi été développés. 1, record 35, French, - gyrolaser%20%C3%A0%20cavit%C3%A9%20carr%C3%A9e
Record 35, Spanish
Record 35, Textual support, Spanish
Record 36 - internal organization data 2001-09-10
Record 36, English
Record 36, Subject field(s)
- General Mechanics (Physics)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
Record 36, Main entry term, English
- disturbing torque
1, record 36, English, disturbing%20torque
correct
Record 36, Abbreviations, English
Record 36, Synonyms, English
Record 36, Textual support, English
Record number: 36, Textual support number: 1 CONT
Controlled pendulum. The gyro spinning wheel is running at constant speed. The precession drive, which lies in a plane symmetric with respect to the gimbal is controlled to create a precession rate of the spinning wheel. Measurement of the rotation angle around the horizontal axis perpendicular to the symmetry plane of the gimbal is used to perform the precession control. This control aims to keep the center of gravity of the gimbal assembly over the rotation axis. The commanded precession rate is such that the gyroscopic torque counterbalances the gravity torque and the disturbing torques... 2, record 36, English, - disturbing%20torque
Record 36, French
Record 36, Domaine(s)
- Mécanique générale (Physique)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
Record 36, Main entry term, French
- couple perturbateur
1, record 36, French, couple%20perturbateur
correct, masculine noun
Record 36, Abbreviations, French
Record 36, Synonyms, French
Record 36, Textual support, French
Record number: 36, Textual support number: 1 CONT
Pendule asservi. La toupie gyroscopique est entraînée à vitesse constante. Le moteur de précession qui est dans le plan de symétrie du berceau est commandé pour produire une vitesse de basculement de la toupie. La mesure de l'angle de rotation autour de l'axe horizontal perpendiculaire au plan de symétrie du berceau est utilisée pour réaliser la commande du moteur de précession. Cette commande a pour but de maintenir le centre de gravité de l'ensemble à la verticale de l'axe de rotation horizontal. La vitesse de précession commandée est telle que le couple gyroscopique produit contre-balance le couple de gravité et les couples perturbateurs [...] 2, record 36, French, - couple%20perturbateur
Record 36, Spanish
Record 36, Textual support, Spanish
Record 37 - internal organization data 2001-09-10
Record 37, English
Record 37, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 37, Main entry term, English
- output axis
1, record 37, English, output%20axis
correct
Record 37, Abbreviations, English
- OA 2, record 37, English, OA
correct
Record 37, Synonyms, English
- torquer axis 3, record 37, English, torquer%20axis
correct
Record 37, Textual support, English
Record number: 37, Textual support number: 1 DEF
torquer axis: That axis about which a force couple is produced by a torquer. 3, record 37, English, - output%20axis
Record number: 37, Textual support number: 1 CONT
A gyroscope has three sensitive axes of interest. These are (1) spin reference axis (SRA), (2) input axis (IA), and (3) output axis (OA)... The ouput axis is that axis, which the wheel precesses, and may be thought of as a line through the center of the gimbal element bearings (i.e., pivots). 2, record 37, English, - output%20axis
Record number: 37, Textual support number: 1 OBS
torquer : In a gyro, a device which produces torque about an axis of freedom in response to a signal input. 4, record 37, English, - output%20axis
Record 37, French
Record 37, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 37, Main entry term, French
- axe de sortie
1, record 37, French, axe%20de%20sortie
correct, masculine noun
Record 37, Abbreviations, French
Record 37, Synonyms, French
- axe de couple 2, record 37, French, axe%20de%20couple
correct, masculine noun
- axe de cardan 3, record 37, French, axe%20de%20cardan
correct, masculine noun
Record 37, Textual support, French
Record number: 37, Textual support number: 1 CONT
Imposer une vitesse angulaire à une roue en rotation autour d'un axe perpendiculaire à l'axe de la toupie produit un couple autour de l'axe normal aux deux premiers [...]. Au cours de l'utilisation productrice de couple de l'effet gyroscopique, trois axes expriment le produit vectoriel entre le moment cinétique et la vitesse angulaire : l'axe de rotation de la toupie («spin»), l'axe d'entrée ou axe de précession et l'axe de sortie ou axe de couple, qui ne restent pas fixes du fait du mouvement de la suspension de la toupie; l'effet gyroscopique est proportionnel au moment cinétique, produit de l'inertie de la roue autour de l'axe de spin par la vitesse de la roue. 2, record 37, French, - axe%20de%20sortie
Record number: 37, Textual support number: 2 CONT
Un gyromètre est un capteur électromécanique, dont le carter (élément sensible) S2 possède un degré de liberté en rotation (autour de l'axe X de sortie), par rapport à un boîtier dont on veut mesurer l'angle de rotation autour d'un axe dit d'entrée Y. 4, record 37, French, - axe%20de%20sortie
Record number: 37, Textual support number: 3 CONT
Un gyroscope à 1 axe [...] comprend essentiellement : un boîtier B [...]; un anneau de cardan C [...] relié à B par un axe de cardan S appelé axe de sortie [...]; cet axe peut être matérialisé par un arbre de torsion, par des roulements à billes de haute qualité, par des ensembles pivot-pierre, par un palier hydrostatique; une toupie T reliée à C par un axe [delta] appelé axe de spin [...], perpendiculaire à S [...]; 3, record 37, French, - axe%20de%20sortie
Record 37, Spanish
Record 37, Textual support, Spanish
Record 38 - internal organization data 2001-09-10
Record 38, English
Record 38, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 38, Main entry term, English
- precession drive
1, record 38, English, precession%20drive
correct
Record 38, Abbreviations, English
Record 38, Synonyms, English
- precession motor 2, record 38, English, precession%20motor
correct
Record 38, Textual support, English
Record number: 38, Textual support number: 1 CONT
Gyroscopic pendulum. Free pendulum. The gyro spinning wheel is running at constant speed. The precession drive, which lies in a plane symmetric with respect to the gimbal is not controlled. When the gimbal becomes free, the gravity torque drives it around the horizontal axis, perpendicular to the symmetry plane, until it falls on the top. 1, record 38, English, - precession%20drive
Record 38, French
Record 38, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 38, Main entry term, French
- moteur de précession
1, record 38, French, moteur%20de%20pr%C3%A9cession
correct, masculine noun
Record 38, Abbreviations, French
Record 38, Synonyms, French
Record 38, Textual support, French
Record number: 38, Textual support number: 1 CONT
On distingue les gyrodynes 1-axe (une seule vitesse cardan commandée par toupie, en précession) dont le couple moteur est directement transmis au satellite par les bâtis et les gyrodynes 2-axes montés sur un double cardan avec vitesses de précession et nutation commandées. Dans ce cas, l'effet d'amplification de couple --le fait qu'un faible couple autour de l'axe de précession produise un fort couple autour de l'axe perpendiculaire-- est moins important car le moteur de précession autour d'un des axes doit surpasser les couples de précession produits par l'autre. Les études menées au DCSD [Département Commande des Systèmes et Dynamique du Vol] portent principalement sur les «grappes» : ensemble de gyrodynes 1-axe commandés simultanément. 2, record 38, French, - moteur%20de%20pr%C3%A9cession
Record 38, Spanish
Record 38, Textual support, Spanish
Record 39 - internal organization data 2001-09-10
Record 39, English
Record 39, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 39, Main entry term, English
- precession torque
1, record 39, English, precession%20torque
correct
Record 39, Abbreviations, English
Record 39, Synonyms, English
- precessional torque 2, record 39, English, precessional%20torque
correct
Record 39, Textual support, English
Record number: 39, Textual support number: 1 DEF
The angular velocity of the axis of spin of a spinning rigid body, which arises as a result of external torques acting on the body. 2, record 39, English, - precession%20torque
Record number: 39, Textual support number: 1 CONT
As the gyro case is rotated about the input axis, clockwise or counterclockwise, a precession torque will be developed about the output axis that will cause the inner gimbal to exert torque against the torsion bars. The torsion bars provide a restraining torque proportional to the amount of the inner gimbal' s displacement. 1, record 39, English, - precession%20torque
Record 39, French
Record 39, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 39, Main entry term, French
- couple de précession
1, record 39, French, couple%20de%20pr%C3%A9cession
correct, masculine noun
Record 39, Abbreviations, French
Record 39, Synonyms, French
Record 39, Textual support, French
Record number: 39, Textual support number: 1 CONT
On distingue les gyrodynes 1-axe (une seule vitesse cardan commandée par toupie, en précession) dont le couple moteur est directement transmis au satellite par les bâtis et les gyrodynes 2-axes montés sur un double cardan avec vitesses de précession et nutation commandées. Dans ce cas, l'effet d'amplification de couple --le fait qu'un faible couple autour de l'axe de précession produise un fort couple autour de l'axe perpendiculaire-- est moins important car le moteur de précession autour d'un des axes doit surpasser les couples de précession produits par l'autre. Les études menées au DCSD [Département Commande des Systèmes et Dynamique du Vol] portent principalement sur les «grappes» : ensemble de gyrodynes 1-axe commandés simultanément. 2, record 39, French, - couple%20de%20pr%C3%A9cession
Record number: 39, Textual support number: 2 CONT
La plateforme va donc tourner à une vitesse telle que le couple de précession du gyromètre annule le couple appliqué sur son axe de sortie. 3, record 39, French, - couple%20de%20pr%C3%A9cession
Record 39, Spanish
Record 39, Textual support, Spanish
Record 40 - internal organization data 2001-09-10
Record 40, English
Record 40, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 40, Main entry term, English
- gravity torque
1, record 40, English, gravity%20torque
correct
Record 40, Abbreviations, English
Record 40, Synonyms, English
- gravity-induced torque 2, record 40, English, gravity%2Dinduced%20torque
correct
Record 40, Textual support, English
Record number: 40, Textual support number: 1 CONT
Gyroscopic pendulum. Free pendulum. The gyro spinning wheel is running at constant speed. The precession drive, which lies in a plane symmetric with respect to the gimbal is not controlled. When the gimbal becomes free, the gravity torque drives it around the horizontal axis, perpendicular to the symmetry plane, until it falls on the top. 1, record 40, English, - gravity%20torque
Record number: 40, Textual support number: 2 CONT
The motion induced in a gyroscope by an applied force follows a simple rule. When the spinning top, for example, is acted upon by a gravity-induced torque, the original rotational motion tries to align itself with the added rotational motion of the torque. The motion, or precession, of the gyroscope that results is perpendicular to the applied torque. In other words, the spin vector tries to align itself with the torque vector; ... 2, record 40, English, - gravity%20torque
Record 40, French
Record 40, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 40, Main entry term, French
- couple de gravité
1, record 40, French, couple%20de%20gravit%C3%A9
correct, masculine noun
Record 40, Abbreviations, French
Record 40, Synonyms, French
Record 40, Textual support, French
Record number: 40, Textual support number: 1 CONT
Pendule gyroscopique. Pendule libre. La toupie gyroscopique est entraînée à vitesse constante. Le moteur de précession qui est dans le plan de symétrie du berceau n'est pas commandé. Quand on lâche le berceau, le couple de gravité fait tourner le berceau autour de son axe horizontal perpendiculaire à son plan de symétrie jusqu'à tomber sur la butée. Cette vitesse de rotation induit un couple gyroscopique qui fait basculer la toupie autour de son axe de précession malgré la résistance du réducteur du moteur de précession. 1, record 40, French, - couple%20de%20gravit%C3%A9
Record 40, Spanish
Record 40, Textual support, Spanish
Record 41 - internal organization data 2001-09-10
Record 41, English
Record 41, Subject field(s)
- Gears and Friction Wheels
- Flight Instruments and Equipment (Aeroindustry)
Record 41, Main entry term, English
- gear of the precession drive
1, record 41, English, gear%20of%20the%20precession%20drive
correct
Record 41, Abbreviations, English
Record 41, Synonyms, English
Record 41, Textual support, English
Record number: 41, Textual support number: 1 CONT
Gyroscopic pendulum. Free pendulum. The gyro spinning wheel is running at constant speed. The precession drive, which lies in a plane symmetric with respect to the gimbal is not controlled. When the gimbal becomes free, the gravity torque drives it around the horizontal axis, perpendicular to the symmetry plane, until it falls on the top. This rate of rotation of the gimbal creates a gyroscopic torque that makes the spinner rotate around the precession axis in spite of the friction due to the gear of the precession drive. 1, record 41, English, - gear%20of%20the%20precession%20drive
Record 41, Key term(s)
- precession drive gear
Record 41, French
Record 41, Domaine(s)
- Engrenages et roues de friction
- Instruments et équipement de bord (Constructions aéronautiques)
Record 41, Main entry term, French
- réducteur du moteur de précession
1, record 41, French, r%C3%A9ducteur%20du%20moteur%20de%20pr%C3%A9cession
correct, masculine noun
Record 41, Abbreviations, French
Record 41, Synonyms, French
Record 41, Textual support, French
Record number: 41, Textual support number: 1 CONT
Pendule gyroscopique. Pendule libre. La toupie gyroscopique est entraînée à vitesse constante. Le moteur de précession qui est dans le plan de symétrie du berceau n'est pas commandé. Quand on lâche le berceau, le couple de gravité fait tourner le berceau autour de son axe horizontal perpendiculaire à son plan de symétrie jusqu'à tomber sur la butée. Cette vitesse de rotation induit un couple gyroscopique qui fait basculer la toupie autour de son axe de précession malgré la résistance du réducteur du moteur de précession. 1, record 41, French, - r%C3%A9ducteur%20du%20moteur%20de%20pr%C3%A9cession
Record 41, Spanish
Record 41, Textual support, Spanish
Record 42 - internal organization data 2001-09-10
Record 42, English
Record 42, Subject field(s)
- Physics
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 42, Main entry term, English
- free pendulum
1, record 42, English, free%20pendulum
correct
Record 42, Abbreviations, English
Record 42, Synonyms, English
Record 42, Textual support, English
Record number: 42, Textual support number: 1 CONT
Gyroscopic pendulum. Free pendulum. The gyro spinning wheel is running at constant speed. The precession drive, which lies in a plane symmetric with respect to the gimbal is not controlled. When the gimbal becomes free, the gravity torque drives it around the horizontal axis, perpendicular to the symmetry plane, until it falls on the top. 1, record 42, English, - free%20pendulum
Record 42, French
Record 42, Domaine(s)
- Physique
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 42, Main entry term, French
- pendule libre
1, record 42, French, pendule%20libre
correct, masculine noun
Record 42, Abbreviations, French
Record 42, Synonyms, French
Record 42, Textual support, French
Record number: 42, Textual support number: 1 CONT
Pendule gyroscopique. Pendule libre. La toupie gyroscopique est entraînée à vitesse constante. Le moteur de précession qui est dans le plan de symétrie du berceau n'est pas commandé. Quant on lâche le berceau, le couple de gravité fait tourner le berceau autour de son axe horizontal perpendiculaire à son plan de symétrie jusqu'à tomber sur la butée. Cette vitesse de rotation induit un couple gyroscopique qui fait basculer la toupie autour de son axe de précession malgré la résistance du réducteur du moteur de précession. 2, record 42, French, - pendule%20libre
Record 42, Spanish
Record 42, Textual support, Spanish
Record 43 - internal organization data 2001-09-10
Record 43, English
Record 43, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 43, Main entry term, English
- stop
1, record 43, English, stop
correct, noun
Record 43, Abbreviations, English
Record 43, Synonyms, English
Record 43, Textual support, English
Record number: 43, Textual support number: 1 CONT
Gyroscopic pendulum. Free pendulum. The gyro spinning wheel is running at constant speed. The precession drive, which lies in a plane symmetric with respect to the gimbal is not controlled. When the gimbal becomes free, the gravity torque drives it around the horizontal axis, perpendicular to the symmetry plane, until it falls on the stop. 1, record 43, English, - stop
Record 43, French
Record 43, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 43, Main entry term, French
- butée
1, record 43, French, but%C3%A9e
correct, feminine noun
Record 43, Abbreviations, French
Record 43, Synonyms, French
Record 43, Textual support, French
Record number: 43, Textual support number: 1 CONT
Pendule gyroscopique. Pendule libre. Le toupie gyroscopique est entraînée à vitesse constante. Le moteur de précession qui est dans le plan de symétrie du berceau n'est pas commandé. Quand on lâche le berceau, le couple de gravité fait tourner le berceau autour de son axe horizontal perpendiculaire à son plan de symétrie jusqu'à tomber sur la butée. Cette vitesse de rotation induit un couple gyroscopique qui fait basculer la toupie autour de son axe de précession malgré la résistance du réducteur du moteur de précession. 1, record 43, French, - but%C3%A9e
Record 43, Spanish
Record 43, Textual support, Spanish
Record 44 - internal organization data 2001-09-10
Record 44, English
Record 44, Subject field(s)
- General Mechanics (Physics)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
Record 44, Main entry term, English
- dynamic moment
1, record 44, English, dynamic%20moment
correct
Record 44, Abbreviations, English
Record 44, Synonyms, English
Record 44, Textual support, English
Record number: 44, Textual support number: 1 CONT
Like flywheels, CMGs [control moment gyro] can be considered either as generators of torques applied to the satellite or as generators of kinetic moment exchanged with the satellite momentum. The axis of the kinetic and dynamic(gyroscopic) moments produced by a CMG are changing in the satellite reference system : they rotate in the plane perpendicular to the tilt axis. Moreover, the higher the dynamic moment, the faster they rotate. To generate a kinetic or dynamic moment in a given direction, it is necessary to combine at least three elementary kinetic moments or gyroscopic torques in variable, non-coplanar directions. 1, record 44, English, - dynamic%20moment
Record 44, French
Record 44, Domaine(s)
- Mécanique générale (Physique)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
Record 44, Main entry term, French
- moment dynamique
1, record 44, French, moment%20dynamique
correct, masculine noun
Record 44, Abbreviations, French
Record 44, Synonyms, French
Record 44, Textual support, French
Record number: 44, Textual support number: 1 CONT
Programmes officiels du cours de Sciences Industrielles pour la filière Physique Sciences de l'Ingénieur PSI. [...] Mécanique. A) Dynamique des solides. 1- Cinétique [...] 2- Puissance [...] 3- Dynamique [...] 4- Applications : Solides en rotation autour d'un axe fixe, équilibrage. Solides en rotation autour d'un point fixe. Dans l'étude du solide en rotation autour d'un axe fixe, on insiste sur le choix des directions de projection du moment dynamique. L'étude des gyroscopes et de l'approximation gyroscopique est hors programme. 2, record 44, French, - moment%20dynamique
Record 44, Spanish
Record 44, Textual support, Spanish
Record 45 - internal organization data 2001-09-06
Record 45, English
Record 45, Subject field(s)
- General Mechanics (Physics)
Record 45, Main entry term, English
- gyroscopic pendulum
1, record 45, English, gyroscopic%20pendulum
correct
Record 45, Abbreviations, English
Record 45, Synonyms, English
Record 45, Textual support, English
Record number: 45, Textual support number: 1 CONT
Gyroscopic pendulum. Free pendulum. The gyro spinning wheel is running at constant speed. The precession drive, which lies in a plane symmetric with respect to the gimbal is not controlled. When the gimbal becomes free, the gravity torque drives it around the horizontal axis, perpendicular to the symmetry plane, until it falls on the top. 1, record 45, English, - gyroscopic%20pendulum
Record 45, French
Record 45, Domaine(s)
- Mécanique générale (Physique)
Record 45, Main entry term, French
- pendule gyroscopique
1, record 45, French, pendule%20gyroscopique
correct, masculine noun
Record 45, Abbreviations, French
Record 45, Synonyms, French
Record 45, Textual support, French
Record number: 45, Textual support number: 1 CONT
Pendule gyroscopique. Pendule libre. La toupie gyroscopique est entraînée à vitesse constante. Le moteur de précession qui est dans le plan de symétrie du berceau n'est pas commandé. Quand on lâche le berceau, le couple de gravité fait tourner le berceau autour de son axe horizontal perpendiculaire à son plan de symétrie jusqu'à tomber sur la butée. Cette vitesse de rotation induit un couple gyroscopique qui fait basculer la toupie autour de son axe de précession malgré la résistance du réducteur du moteur de précession. 1, record 45, French, - pendule%20gyroscopique
Record 45, Spanish
Record 45, Textual support, Spanish
Record 46 - internal organization data 2001-09-04
Record 46, English
Record 46, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 46, Main entry term, English
- slaving torque motor
1, record 46, English, slaving%20torque%20motor
correct
Record 46, Abbreviations, English
- STM 2, record 46, English, STM
correct
Record 46, Synonyms, English
Record 46, Textual support, English
Record number: 46, Textual support number: 1 CONT
The amplifier is the coordination and distribution center for all system electrical signals. Remote compass transmitter signals arc phase detected to resolve for the 180-degree ambiguity and arc sent to the slaving torque motor to keep the gyro spins axis aligned with magnetic north-south. The amplifier also provides high voltage to the slaving torque motor for any periods of fast slaving;... 3, record 46, English, - slaving%20torque%20motor
Record number: 46, Textual support number: 1 OBS
slaving: The use of a torquer to maintain the orientation of the spin axis relative to an external reference, such as a pendulum or magnetic compass. 4, record 46, English, - slaving%20torque%20motor
Record 46, French
Record 46, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 46, Main entry term, French
- moteur couple d'asservissement
1, record 46, French, moteur%20couple%20d%27asservissement
correct, masculine noun
Record 46, Abbreviations, French
Record 46, Synonyms, French
- asservissement de gyroscope 2, record 46, French, asservissement%20de%20gyroscope
see observation, masculine noun
Record 46, Textual support, French
Record number: 46, Textual support number: 1 CONT
Accéléromètre pendulaire. Un pendule constitué d'une bobine inductive se déplace sous l'effet de la force spécifique, une bobine de détection et un moteur couple d'asservissement permettent la mesure de cette force spécifique suivant l'axe sensible du pendule. 3, record 46, French, - moteur%20couple%20d%27asservissement
Record number: 46, Textual support number: 1 OBS
asservissement de gyroscope : Noter que le terme asservissement est utilisé ici au sens concret et qu'il désigne un appareil et non pas une action. 4, record 46, French, - moteur%20couple%20d%27asservissement
Record 46, Spanish
Record 46, Textual support, Spanish
Record 47 - internal organization data 2001-08-30
Record 47, English
Record 47, Subject field(s)
- Couplings (Mechanical Components)
- Aeroindustry
- Navigation Instruments
Record 47, Main entry term, English
- gimbaled
1, record 47, English, gimbaled
correct
Record 47, Abbreviations, English
Record 47, Synonyms, English
- gimballed 2, record 47, English, gimballed
correct
Record 47, Textual support, English
Record number: 47, Textual support number: 1 DEF
Provided with or supported on gimbals. 3, record 47, English, - gimbaled
Record number: 47, Textual support number: 1 CONT
gimbaled inertial system... An inertial guidance system that makes use of a three-gimbal mounting whose inner gimbal is a stable platform on which three gyroscopes and accelerometers are mounted; the gyroscopes sense any rotation of the vehicle and drive the gimbals in the opposite direction, so that the inner platform remains fixed in inertial space. 4, record 47, English, - gimbaled
Record number: 47, Textual support number: 1 OBS
gimbal : In a gyro, a support which provides the spin axis with a degree of freedom. 4, record 47, English, - gimbaled
Record 47, French
Record 47, Domaine(s)
- Accouplements (Composants mécaniques)
- Constructions aéronautiques
- Instruments de navigation
Record 47, Main entry term, French
- monté à la Cardan
1, record 47, French, mont%C3%A9%20%C3%A0%20la%20Cardan
correct
Record 47, Abbreviations, French
Record 47, Synonyms, French
- suspendu à la Cardan 2, record 47, French, suspendu%20%C3%A0%20la%20Cardan
correct
- à anneaux de cardan 3, record 47, French, %C3%A0%20anneaux%20de%20cardan
- monté sur cardan 4, record 47, French, mont%C3%A9%20sur%20cardan
Record 47, Textual support, French
Record number: 47, Textual support number: 1 CONT
Garde-cap. Il s'agit d'un gyroscope que l'on maintient horizontal et qui définit une direction fixe dans le plan horizontal à sa dérive près. Le gyroscope est monté à la Cardan comme dans le cas du compas mais il n'est pas balourdé. Un détecteur d'horizon monté sur la caisse de tore délivre un signal proportionnel à l'inclinaison du moment cinétique; ce signal est traité et est envoyé dans un moteur couple d'axe cd qui crée un couple vertical ramenant le moment cinétique horizontal. 1, record 47, French, - mont%C3%A9%20%C3%A0%20la%20Cardan
Record number: 47, Textual support number: 1 OBS
cardan : Articulation permettant l'accouplement de deux arbres à axes concourants. 5, record 47, French, - mont%C3%A9%20%C3%A0%20la%20Cardan
Record number: 47, Textual support number: 2 OBS
On semble écrire «cardan» avec ou sans la majuscule initiale (Cardan, du nom de l'inventeur); on semble cependant préférer la majuscule dans les expressions : monté à la Cardan, joint de Cardan, suspension à la Cardan; et la minuscule quand on utilise le substantif seul. 6, record 47, French, - mont%C3%A9%20%C3%A0%20la%20Cardan
Record 47, Spanish
Record 47, Textual support, Spanish
Record 48 - internal organization data 2001-08-30
Record 48, English
Record 48, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 48, Main entry term, English
- kinetic moment
1, record 48, English, kinetic%20moment
correct
Record 48, Abbreviations, English
Record 48, Synonyms, English
Record 48, Textual support, English
Record number: 48, Textual support number: 1 CONT
Like flywheels, CMGs [control moment gyro] can be considered either as generators of torques applied to the satellite or as generators of kinetic moment exchanged with the satellite momentum. The axis of the kinetic and dynamic(gyroscopic) moments produced by a CMG are changing in the satellite reference system : they rotate in the plane perpendicular to the tilt axis. Moreover, the higher the dynamic moment, the faster they rotate. To generate a kinetic or dynamic moment in a given direction, it is necessary to combine at least three elementary kinetic moments or gyroscopic torques in variable, non-coplanar directions. 1, record 48, English, - kinetic%20moment
Record 48, French
Record 48, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 48, Main entry term, French
- moment cinétique
1, record 48, French, moment%20cin%C3%A9tique
correct, masculine noun
Record 48, Abbreviations, French
Record 48, Synonyms, French
- moment cinétique du gyroscope 1, record 48, French, moment%20cin%C3%A9tique%20du%20gyroscope
correct, masculine noun
- moment cinétique gyro 2, record 48, French, moment%20cin%C3%A9tique%20gyro
correct, masculine noun
- moment cinétique du gyro 3, record 48, French, moment%20cin%C3%A9tique%20du%20gyro
correct, masculine noun
Record 48, Textual support, French
Record number: 48, Textual support number: 1 CONT
Garde-cap. Il s'agit d'un gyroscope que l'on maintient horizontal et qui définit une direction fixe dans le plan horizontal à sa dérive près. Le gyroscope est monté à la Cardan comme dans le cas du compas mais il n'est pas balourdé. Un détecteur d'horizon monté sur la caisse de tore délivre un signal proportionnel à l'inclinaison du moment cinétique; ce signal est traité et est envoyé dans un moteur couple d'axe cd qui crée un couple vertical ramenant le moment cinétique horizontal. 1, record 48, French, - moment%20cin%C3%A9tique
Record number: 48, Textual support number: 2 CONT
Indicateur de verticale. C'est un appareil comportant un gyroscope dont le moment cinétique est dirigé au mieux suivant la verticale. Le carter du gyroscope est monté à la Cardan suivant les axes de roulis ou de tangage du bâtiment. Les pendules détecteurs (roulis ou tangage) détectent les écarts de verticale, leurs signaux sont amplifiés dans des amplificateurs et ils alimentent les moteurs couples correspondants (roulis ou tangage) de façon à ramener les signaux des pendules à zéro, le moment cinétique du gyroscope est ainsi maintenu vertical. 1, record 48, French, - moment%20cin%C3%A9tique
Record 48, Spanish
Record 48, Textual support, Spanish
Record 49 - internal organization data 2001-08-28
Record 49, English
Record 49, Subject field(s)
- Suspension (Mechanical Components)
- Navigation Instruments
Record 49, Main entry term, English
- elastic element
1, record 49, English, elastic%20element
correct
Record 49, Abbreviations, English
Record 49, Synonyms, English
Record 49, Textual support, English
Record number: 49, Textual support number: 1 CONT
flexure(dynamically tuned gyro). An elastic element in a dynamically tuned gyro rotor suspension system, which permits limited angular freedom about axes perpendicular to the spin axis. 2, record 49, English, - elastic%20element
Record 49, French
Record 49, Domaine(s)
- Suspension (Composants mécaniques)
- Instruments de navigation
Record 49, Main entry term, French
- élément élastique
1, record 49, French, %C3%A9l%C3%A9ment%20%C3%A9lastique
correct, masculine noun
Record 49, Abbreviations, French
Record 49, Synonyms, French
Record 49, Textual support, French
Record number: 49, Textual support number: 1 CONT
Gyroscopes libres. Le problème consiste à suspendre la toupie en minimisant l'incertitude [delta]C sur le couple qui lui est appliqué. [...] des recherches technologiques ont favorisé l'apparition de multiples réalisations parmi lesquelles on peut citer : la suspension par cardan [...]; la suspension par flottaison [...]; la suspension hydrodynamique; [...]; la suspension électrique [...]; la suspension élastique; la toupie est reliée au boîtier par des éléments élastiques dont la raideur et l'inertie doivent vérifier une relation, dans laquelle entre la vitesse de rotation de la toupie; le respect de cette condition annule le couple transmis à la toupie; la précision est de un à quelques millièmes de degré par heure. 1, record 49, French, - %C3%A9l%C3%A9ment%20%C3%A9lastique
Record 49, Spanish
Record 49, Textual support, Spanish
Record 50 - internal organization data 2001-08-27
Record 50, English
Record 50, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 50, Main entry term, English
- two-degree-of-freedom gyroscope
1, record 50, English, two%2Ddegree%2Dof%2Dfreedom%20gyroscope
correct
Record 50, Abbreviations, English
Record 50, Synonyms, English
- two-degrees-of-freedom gyro 2, record 50, English, two%2Ddegrees%2Dof%2Dfreedom%20gyro
correct
- two-degree of freedom gyroscope 3, record 50, English, two%2Ddegree%20of%20freedom%20gyroscope
correct
- two-degree of freedom gyro 3, record 50, English, two%2Ddegree%20of%20freedom%20gyro
correct
- double axis gyro 4, record 50, English, double%20axis%20gyro
correct
Record 50, Textual support, English
Record number: 50, Textual support number: 1 DEF
A gyro whose spin axis is free to rotate about two orthogonal axes, not counting the spin axis. 5, record 50, English, - two%2Ddegree%2Dof%2Dfreedom%20gyroscope
Record number: 50, Textual support number: 1 CONT
Gyroscopes are classified by the number of degrees of freedom that they possess, i.e., they are single-degree-of-freedom or two-degree-of-freedom. ... a gyroscope supported by one gimbal only has the position of its spin axis determined by one angle and is therefore called a single-degree-of-freedom gyroscope. A gyroscope supported by two gimbals has two degrees of freedom. These two categories are used almost exclusively in aerospace applications. 1, record 50, English, - two%2Ddegree%2Dof%2Dfreedom%20gyroscope
Record 50, Key term(s)
- two-degrees of freedom gyroscope
Record 50, French
Record 50, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 50, Main entry term, French
- gyroscope à deux degrés de liberté
1, record 50, French, gyroscope%20%C3%A0%20deux%20degr%C3%A9s%20de%20libert%C3%A9
correct, masculine noun
Record 50, Abbreviations, French
Record 50, Synonyms, French
- gyroscope 2 axes 2, record 50, French, gyroscope%202%20axes
correct, masculine noun
- gyroscope à deux axes sensibles 3, record 50, French, gyroscope%20%C3%A0%20deux%20axes%20sensibles
correct, masculine noun
Record 50, Textual support, French
Record number: 50, Textual support number: 1 CONT
Degrés de liberté. Le carter du gyroscope peut être lié au bâti qui le supporte de deux façons : la liaison est telle qu'elle autorise un mouvement de rotation autour d'un seul axe, le gyroscope est dit à un degré de liberté; la liaison est telle qu'elle autorise deux mouvements de rotation autour de deux axes concourants, le gyroscope est dit à deux degrés de liberté. Le carter peut exécuter une rotation quelconque autour du point de concours des deux axes. 4, record 50, French, - gyroscope%20%C3%A0%20deux%20degr%C3%A9s%20de%20libert%C3%A9
Record 50, Key term(s)
- gyroscope deux axes
Record 50, Spanish
Record 50, Textual support, Spanish
Record 51 - internal organization data 2001-08-27
Record 51, English
Record 51, Subject field(s)
- Measuring Instruments (Engineering)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 51, Main entry term, English
- rate integrating gyro
1, record 51, English, rate%20integrating%20gyro
correct
Record 51, Abbreviations, English
Record 51, Synonyms, English
- rate integrating gyroscope 2, record 51, English, rate%20integrating%20gyroscope
correct
- displacement gyroscope 3, record 51, English, displacement%20gyroscope
correct, see observation, less frequent
- integrating rate gyro 4, record 51, English, integrating%20rate%20gyro
Record 51, Textual support, English
Record number: 51, Textual support number: 1 DEF
A single-degree-of-freedom gyro having primarily viscous restraint of its spin axis about the output axis; an output signal is produced by gimbal angular displacement, relative to the base, which is proportional to the integral of the angular rate of the base about the input axis. 5, record 51, English, - rate%20integrating%20gyro
Record number: 51, Textual support number: 1 OBS
The rate integrating gyroscope is sometimes referred to as a "displacement gyroscope." 2, record 51, English, - rate%20integrating%20gyro
Record 51, Key term(s)
- rate-integrating gyroscope
- integrating rate gyroscope
- rate-integrating gyro
Record 51, French
Record 51, Domaine(s)
- Instruments de mesure (Ingénierie)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 51, Main entry term, French
- gyromètre intégrateur
1, record 51, French, gyrom%C3%A8tre%20int%C3%A9grateur
correct, masculine noun
Record 51, Abbreviations, French
Record 51, Synonyms, French
- gyro flottant 2, record 51, French, gyro%20flottant
masculine noun
Record 51, Textual support, French
Record number: 51, Textual support number: 1 CONT
Le gyromètre intégrateur [...] est un gyroscope 1 axe ne devant comporter aucun rappel élastique [...] mais doué d'un fort amortissement visqueux [...]. Son équipage mobile comporte toujours un carter étanche flottant dans un liquide à haute viscosité, d'où son appellation courante gyro flottant; la qualité du liquide de flottaison est choisie aussi voisine que possible de la densité moyenne de l'équipage mobile, afin de soulager au mieux les ensembles pivot-pierre matérialisant l'axe de sortie, par un équilibre entre la poussée d'Archimède et le poids apparent de l'équipage mobile. 2, record 51, French, - gyrom%C3%A8tre%20int%C3%A9grateur
Record number: 51, Textual support number: 2 CONT
On peut imaginer et c'est la tendance actuelle, une détection des écarts angulaires par des gyromètres intégrateurs directement disposés sur la structure de [la plate-forme], en strapdown et mesurant les infimes écarts d'orientation de [la plate-forme]. [...] La centrale décrite est celle qui équipe le Mirage 2000, son nom UNI 52. 3, record 51, French, - gyrom%C3%A8tre%20int%C3%A9grateur
Record 51, Spanish
Record 51, Textual support, Spanish
Record 52 - internal organization data 2001-08-24
Record 52, English
Record 52, Subject field(s)
- Measuring Instruments (Engineering)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 52, Main entry term, English
- navigation gyro
1, record 52, English, navigation%20gyro
correct
Record 52, Abbreviations, English
Record 52, Synonyms, English
- navigation gyroscope 2, record 52, English, navigation%20gyroscope
correct
Record 52, Textual support, English
Record number: 52, Textual support number: 1 CONT
The NKE gyro pilot steers with the speed..., as the boat's reactions are different if you are doing 5 or 12 knots... there is a factory setting of the average boat speed... A navigation gyro consists of a motor and a heavy disk mounted in a set of gimbals. Sensors on the pivots of the gimbals or otherwise mounted in the case detect the relative movement between the axis of the gyro and the case. The advantage of the gyro over the traditional card compass is that the response is immediate. 3, record 52, English, - navigation%20gyro
Record number: 52, Textual support number: 2 CONT
Future commercial applications of MEMS [microelectromechanical systems] are expected to include microfluidic manipulators for implantable drug dispensers, navigation gyros for aerospace use and magnetic and optical storage, switching devices and displays for information technology. 4, record 52, English, - navigation%20gyro
Record number: 52, Textual support number: 1 OBS
navigation: The science or art of conducting ships or aircraft from one place to another;... 5, record 52, English, - navigation%20gyro
Record 52, French
Record 52, Domaine(s)
- Instruments de mesure (Ingénierie)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 52, Main entry term, French
- gyroscope de navigation
1, record 52, French, gyroscope%20de%20navigation
correct, masculine noun
Record 52, Abbreviations, French
Record 52, Synonyms, French
Record 52, Textual support, French
Record number: 52, Textual support number: 1 CONT
L'approximation gyroscopique consiste [...] à admettre, pour le rotor du gyroscope, la condition : [formule xxx]. Dans les gyroscopes de pilotage et de navigation en fonctionnement normal, cette condition est généralement vérifiée. 2, record 52, French, - gyroscope%20de%20navigation
Record number: 52, Textual support number: 2 CONT
Mécanicien avionique. Mécanicien équipements électroniques bord. [...] Le programme d'enseignement porte notamment sur : [...] le contrôle vol moteur, les manomètres, les gyroscopes de navigation, le pilote automatique, les commandes de vol. 3, record 52, French, - gyroscope%20de%20navigation
Record number: 52, Textual support number: 1 OBS
navigation : Technique de la conduite des navires et du pilotage des avions. 4, record 52, French, - gyroscope%20de%20navigation
Record 52, Spanish
Record 52, Textual support, Spanish
Record 53 - internal organization data 2001-08-24
Record 53, English
Record 53, Subject field(s)
- Measuring Instruments (Engineering)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 53, Main entry term, English
- case
1, record 53, English, case
correct, noun
Record 53, Abbreviations, English
Record 53, Synonyms, English
- gyroscope case 2, record 53, English, gyroscope%20case
correct
- case of the gyro 3, record 53, English, case%20of%20the%20gyro
correct
Record 53, Textual support, English
Record number: 53, Textual support number: 1 DEF
case: The structure which provides the mounting surfaces and establishes the reference axes. 4, record 53, English, - case
Record number: 53, Textual support number: 1 CONT
Attitude indicator components(vacuum-driven). The rotor, mounted in a sealed housing, spins in a horizontal plane about the vertical axis. The housing pivots about the lateral axis on a gimbal, which in turn is free to pivot about the longitudinal axis. The instrument case is the third gimbal necessary for universal mounting. The horizon bar is linked to the gyro by a lever, attached to a pivot on the rear of the gimbal frame and connected to the gyro housing by a guide pin. 5, record 53, English, - case
Record 53, Key term(s)
- gyro case
- case of the gyroscope
Record 53, French
Record 53, Domaine(s)
- Instruments de mesure (Ingénierie)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 53, Main entry term, French
- boîtier du gyroscope
1, record 53, French, bo%C3%AEtier%20du%20gyroscope
correct, masculine noun
Record 53, Abbreviations, French
Record 53, Synonyms, French
- boîtier 2, record 53, French, bo%C3%AEtier
correct, masculine noun
- boîtier d'un gyroscope 3, record 53, French, bo%C3%AEtier%20d%27un%20gyroscope
correct, masculine noun
Record 53, Textual support, French
Record number: 53, Textual support number: 1 CONT
Un gyroscope est essentiellement constitué d'un solide de révolution animé d'un mouvement de rotation rapide autour de son axe de symétrie. Le solide de révolution est appelé rotor ou toupie gyroscopique. Dans un grand nombre de cas d'utilisation concrète, le rotor doit pouvoir prendre n'importe quelle position dans l'espace. À cet effet on rend le rotor solidaire du boîtier qui le contient au moyen d'un système de deux cadres mobiles l'un par rapport à l'autre. 4, record 53, French, - bo%C3%AEtier%20du%20gyroscope
Record number: 53, Textual support number: 2 CONT
Les appareils gyroscopiques [...] nécessitent généralement un moteur pour entretenir un état permanent de l'élément sensible (amplitude de la vibration, vitesse de rotation de la toupie) et compenser les pertes internes, par frottement, du dispositif. La qualité de l'appareil ainsi constitué, composé d'un boîtier, d'un élément sensible, d'un moteur et d'un détecteur angulaire, est caractérisée par sa performance de stabilité angulaire. 1, record 53, French, - bo%C3%AEtier%20du%20gyroscope
Record number: 53, Textual support number: 3 CONT
Un gyromètre est un capteur électromécanique, dont le carter (élément sensible) S2 possède un degré de liberté en rotation (autour de l'axe X de sortie), par rapport à un boîtier dont on veut mesurer l'angle de rotation autour d'un axe dit d'entrée Y. 5, record 53, French, - bo%C3%AEtier%20du%20gyroscope
Record number: 53, Textual support number: 1 OBS
Ne pas confondre avec carter. 6, record 53, French, - bo%C3%AEtier%20du%20gyroscope
Record 53, Key term(s)
- boîtier du gyro
Record 53, Spanish
Record 53, Textual support, Spanish
Record 54 - internal organization data 2001-08-24
Record 54, English
Record 54, Subject field(s)
- Measuring Instruments (Engineering)
- General Mechanics (Physics)
- Navigation Instruments
Record 54, Main entry term, English
- tuning fork gyro
1, record 54, English, tuning%20fork%20gyro
correct
Record 54, Abbreviations, English
Record 54, Synonyms, English
- tuning-fork gyroscope 2, record 54, English, tuning%2Dfork%20gyroscope
correct
Record 54, Textual support, English
Record number: 54, Textual support number: 1 CONT
Tuning Fork Gyro : Tiny vibration changes moment of inertia around rotation axis; resulting tendency to change rotational velocity induces tortional vibration about the stem. 3, record 54, English, - tuning%20fork%20gyro
Record number: 54, Textual support number: 2 CONT
What had been a state-of-the-art, lightweight ring laser gyro unit in the 1980s (replacing the earlier mechanical gimbaled gyro), evolved into a solid-state fiber-optic gyro, then to a quartz tuning fork gyro, to a micro-mechanical gyro. 4, record 54, English, - tuning%20fork%20gyro
Record 54, Key term(s)
- tuning-fork gyro
- tuning fork gyroscope
Record 54, French
Record 54, Domaine(s)
- Instruments de mesure (Ingénierie)
- Mécanique générale (Physique)
- Instruments de navigation
Record 54, Main entry term, French
- gyroscope diapason
1, record 54, French, gyroscope%20diapason
correct, masculine noun
Record 54, Abbreviations, French
Record 54, Synonyms, French
- gyroscope à diapason 2, record 54, French, gyroscope%20%C3%A0%20diapason
correct, masculine noun
Record 54, Textual support, French
Record number: 54, Textual support number: 1 OBS
Gyromètres à diapason [...] Comme dans les gyromètres classiques, on détecte l'influence de forces de Coriolis [...] sur des éléments matériels; mais la vitesse relative [...] est ici obtenue par la vibration d'une lame élastique, plutôt que par la rotation d'une toupie. Le but poursuivi par les chercheurs est de créer un appareil plus simple que les gyromètres classiques et, par la suite, moins coûteux et plus fiable. 3, record 54, French, - gyroscope%20diapason
Record number: 54, Textual support number: 2 OBS
Un gyroscope est un appareil capable de fournir une direction physique de référence et, corrélativement, une information de rotation angulaire [...]. Un gyromètre est un appareil capable de fournir une information de vitesse angulaire, vis-à-vis d'un référentiel absolu (c'est-à-dire par rapport aux étoiles). Dans un certain nombre de cas, un même appareil peut être capable de fonctionner en gyroscope ou en gyromètre. 1, record 54, French, - gyroscope%20diapason
Record 54, Spanish
Record 54, Textual support, Spanish
Record 55 - internal organization data 2001-08-23
Record 55, English
Record 55, Subject field(s)
- Measuring Instruments (Engineering)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
Record 55, Main entry term, English
- conventional rate gyro
1, record 55, English, conventional%20rate%20gyro
correct
Record 55, Abbreviations, English
Record 55, Synonyms, English
- classical rate gyro 2, record 55, English, classical%20rate%20gyro
- classic rate gyro 2, record 55, English, classic%20rate%20gyro
Record 55, Textual support, English
Record number: 55, Textual support number: 1 CONT
Rate gyroscopes provide a means for measuring angular rate about a particular axis and are traditionally used in a variety of high accuracy control and guidance systems in aircraft, missiles and ships. The conventional rate gyro, based on a high speed rotor, is a mature but relatively complex, delicate and expensive product. For these reasons and the increasing market for less expensive devices, a great deal of research effort has been invested into the development of a rate gyro with a vibrating sensitive element, which would eliminate the need for ball bearing suspensions and hence reduce the mechanical complexity and cost whilst greatly increasing life and robustness. The principle of operation of these devices is based on the coriolis force, which couples together two degenerate modes of vibration of the sensitive element when the sensor rotates. 1, record 55, English, - conventional%20rate%20gyro
Record number: 55, Textual support number: 1 OBS
rate gyro : A special kind of gyroscope that measures rotation rate around a fixed axis. 3, record 55, English, - conventional%20rate%20gyro
Record 55, Key term(s)
- classic gyrometer
- classical gyrometer
- conventional gyrometer
Record 55, French
Record 55, Domaine(s)
- Instruments de mesure (Ingénierie)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
Record 55, Main entry term, French
- gyromètre classique
1, record 55, French, gyrom%C3%A8tre%20classique
correct, masculine noun
Record 55, Abbreviations, French
Record 55, Synonyms, French
Record 55, Textual support, French
Record number: 55, Textual support number: 1 CONT
Les erreurs de mesure des gyromètres laser peuvent être représentées par des modèles mathématiques beaucoup plus simples que ceux intervenant dans l'étude des gyromètres classiques. Cela résulte essentiellement de l'insensibilité des gyromètres laser aux accélérations. 1, record 55, French, - gyrom%C3%A8tre%20classique
Record number: 55, Textual support number: 1 OBS
gyromètre : Capteur gyroscopique à un ou plusieurs degrés de liberté, utilisé pour la mesure de vitesses angulaires. 2, record 55, French, - gyrom%C3%A8tre%20classique
Record 55, Spanish
Record 55, Textual support, Spanish
Record 56 - internal organization data 2001-08-21
Record 56, English
Record 56, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 56, Main entry term, English
- input rate
1, record 56, English, input%20rate
correct
Record 56, Abbreviations, English
Record 56, Synonyms, English
Record 56, Textual support, English
Record number: 56, Textual support number: 1 DEF
The angular displacement per unit time of the case [of a gyro] about an input axis. 2, record 56, English, - input%20rate
Record 56, French
Record 56, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 56, Main entry term, French
- vitesse angulaire d'entrée
1, record 56, French, vitesse%20angulaire%20d%27entr%C3%A9e
correct, feminine noun
Record 56, Abbreviations, French
Record 56, Synonyms, French
Record 56, Textual support, French
Record number: 56, Textual support number: 1 CONT
[...] relation qui caractérise un gyromètre, appareil de mesure ou l'angle de sortie est proportionnel à la vitesse angulaire d'entrée. 2, record 56, French, - vitesse%20angulaire%20d%27entr%C3%A9e
Record 56, Spanish
Record 56, Textual support, Spanish
Record 57 - internal organization data 2001-08-21
Record 57, English
Record 57, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 57, Main entry term, English
- input reference axis
1, record 57, English, input%20reference%20axis
correct
Record 57, Abbreviations, English
- IRA 2, record 57, English, IRA
correct
Record 57, Synonyms, English
Record 57, Textual support, English
Record number: 57, Textual support number: 1 DEF
[For a gyro or an accelerometer] the direction of an axis(nominally parallel to an input axis) as defined by the case mounting surfaces or external case markings, or both. 2, record 57, English, - input%20reference%20axis
Record 57, French
Record 57, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 57, Main entry term, French
- axe de référence d'entrée
1, record 57, French, axe%20de%20r%C3%A9f%C3%A9rence%20d%27entr%C3%A9e
correct, masculine noun
Record 57, Abbreviations, French
Record 57, Synonyms, French
Record 57, Textual support, French
Record 57, Spanish
Record 57, Textual support, Spanish
Record 58 - internal organization data 2001-08-21
Record 58, English
Record 58, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 58, Main entry term, English
- principal axis of compliance
1, record 58, English, principal%20axis%20of%20compliance
correct
Record 58, Abbreviations, English
Record 58, Synonyms, English
Record 58, Textual support, English
Record number: 58, Textual support number: 1 DEF
[Of a gyro or accelerometer] an axis along which an applied force results in a displacement along that axis only. 2, record 58, English, - principal%20axis%20of%20compliance
Record 58, French
Record 58, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 58, Main entry term, French
- axe principal d'inertie
1, record 58, French, axe%20principal%20d%27inertie
correct, masculine noun
Record 58, Abbreviations, French
Record 58, Synonyms, French
Record 58, Textual support, French
Record number: 58, Textual support number: 1 CONT
Principe mécanique : La stabilisation par «SPIN» ou encore «raideur gyroscopique», repose sur le résultat capital du mouvement de Poinsot, qui indique que si la rotation du solide est portée par un axe principal d'inertie, cet axe restera fixe dans l'espace inertiel. Nous avons aussi montré que le mouvement libre est stable si cet axe est celui de plus grande inertie, notamment en présence de dissipations internes. 2, record 58, French, - axe%20principal%20d%27inertie
Record 58, Spanish
Record 58, Textual support, Spanish
Record 59 - internal organization data 2001-08-21
Record 59, English
Record 59, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 59, Main entry term, English
- pendulosity
1, record 59, English, pendulosity
correct
Record 59, Abbreviations, English
Record 59, Synonyms, English
Record 59, Textual support, English
Record number: 59, Textual support number: 1 DEF
[Of a gyro or accelerometer] the product of the inertial-sensing mass and the distance from the center of mass to the center of support measured along the pendulous axis. 2, record 59, English, - pendulosity
Record number: 59, Textual support number: 1 CONT
pendulous integrating gyroscopic accelerometer : A linear accelerometer using a single-degree-of-freedom gyro having a pendulosity along the spin axis that is servo-driven about the input axis at a rate that balances the torque induced by sensed acceleration along the input axis. The angle through which the servoed axis rotates is proportional to the integral of the sensed acceleration. 2, record 59, English, - pendulosity
Record 59, French
Record 59, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 59, Main entry term, French
- moment pendulaire
1, record 59, French, moment%20pendulaire
masculine noun
Record 59, Abbreviations, French
Record 59, Synonyms, French
Record 59, Textual support, French
Record 59, Spanish
Record 59, Textual support, Spanish
Record 60 - internal organization data 2001-08-21
Record 60, English
Record 60, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 60, Main entry term, English
- pendulous integrating gyroscopic accelerometer
1, record 60, English, pendulous%20integrating%20gyroscopic%20accelerometer
correct
Record 60, Abbreviations, English
- PIGA 2, record 60, English, PIGA
correct
Record 60, Synonyms, English
Record 60, Textual support, English
Record number: 60, Textual support number: 1 DEF
A linear accelerometer using a single-degree-of-freedom gyro having a pendulosity along the spin axis that is servo-driven about the input axis at a rate that balances the torque induced by sensed acceleration along the input axis. The angle through which the servoed axis rotates is proportional to the integral of the sensed acceleration. 3, record 60, English, - pendulous%20integrating%20gyroscopic%20accelerometer
Record number: 60, Textual support number: 1 CONT
The intercontinental ballistic missiles (ICBM) and submarine-launched ballistic missiles (SLBM) developed over the past 50 years have employed successive generations of increasingly accurate inertial guidance systems. The comparatively short time of guided flight and high acceleration levels characteristic of the ballistic missile application place a premium on accelerometer performance to achieve desired weapon system accuracy. To date, the accelerometer design of choice for strategic missiles has been the Pendulous Integrating Gyroscopic Accelerometer (PIGA) instrument, an accelerometer whose origins trace back to the German V2 rocket, and has been refined through several generations of development to achieve unsurpassed performance. 4, record 60, English, - pendulous%20integrating%20gyroscopic%20accelerometer
Record 60, French
Record 60, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 60, Main entry term, French
- accéléromètre gyro-intégrateur pendulaire
1, record 60, French, acc%C3%A9l%C3%A9rom%C3%A8tre%20gyro%2Dint%C3%A9grateur%20pendulaire
masculine noun
Record 60, Abbreviations, French
Record 60, Synonyms, French
Record 60, Textual support, French
Record 60, Spanish
Record 60, Textual support, Spanish
Record 61 - internal organization data 2001-08-21
Record 61, English
Record 61, Subject field(s)
- Electronics
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 61, Main entry term, English
- characteristic time
1, record 61, English, characteristic%20time
correct
Record 61, Abbreviations, English
Record 61, Synonyms, English
Record 61, Textual support, English
Record number: 61, Textual support number: 1 DEF
The time required for the output to reach 63 percent of its final value for a step input. 2, record 61, English, - characteristic%20time
Record number: 61, Textual support number: 1 CONT
For a single degree-of-freedom, rate-integrating gyro, characteristic time is numerically equal to the ratio of the float moment of inertia to the damping coefficient about the output axis. For certain fluid filled gyros, the float moment of inertia may include other effects, such as that of transported fluid. 2, record 61, English, - characteristic%20time
Record 61, French
Record 61, Domaine(s)
- Électronique
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 61, Main entry term, French
- temps caractéristique de lancement
1, record 61, French, temps%20caract%C3%A9ristique%20de%20lancement
correct, masculine noun
Record 61, Abbreviations, French
Record 61, Synonyms, French
Record 61, Textual support, French
Record 61, Spanish
Record 61, Textual support, Spanish
Record 62 - internal organization data 2001-08-20
Record 62, English
Record 62, Subject field(s)
- General Mechanics (Physics)
- Flight Instruments and Equipment (Aeroindustry)
- Ship Piloting
- Navigation Instruments
Record 62, Main entry term, English
- single-degree-of-freedom
1, record 62, English, single%2Ddegree%2Dof%2Dfreedom
correct
Record 62, Abbreviations, English
Record 62, Synonyms, English
- single degree of freedom 2, record 62, English, single%20degree%20of%20freedom
correct
- SDF 3, record 62, English, SDF
correct
- SDF 3, record 62, English, SDF
Record 62, Textual support, English
Record number: 62, Textual support number: 1 CONT
single-degree-of-freedom gyro : A gyro, the spin axis of which is free to rotate about only one of the orthogonal axes, the spin axis not being counted. 4, record 62, English, - single%2Ddegree%2Dof%2Dfreedom
Record 62, French
Record 62, Domaine(s)
- Mécanique générale (Physique)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage des navires
- Instruments de navigation
Record 62, Main entry term, French
- un degré de liberté
1, record 62, French, un%20degr%C3%A9%20de%20libert%C3%A9
correct, masculine noun
Record 62, Abbreviations, French
Record 62, Synonyms, French
- un seul degré de liberté 2, record 62, French, un%20seul%20degr%C3%A9%20de%20libert%C3%A9
correct, masculine noun
Record 62, Textual support, French
Record number: 62, Textual support number: 1 CONT
Un gyromètre est un capteur électromécanique, dont le carter (élément sensible) S2 possède un degré de liberté en rotation (autour de l'axe X de sortie), par rapport à un boîtier dont on veut mesurer l'angle de rotation autour d'un axe dit d'entrée Y. 3, record 62, French, - un%20degr%C3%A9%20de%20libert%C3%A9
Record number: 62, Textual support number: 2 CONT
Gyroscope à un degré de liberté. 4, record 62, French, - un%20degr%C3%A9%20de%20libert%C3%A9
Record 62, Spanish
Record 62, Textual support, Spanish
Record 63 - internal organization data 2001-08-20
Record 63, English
Record 63, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 63, Main entry term, English
- radial-unbalance torque
1, record 63, English, radial%2Dunbalance%20torque
correct
Record 63, Abbreviations, English
Record 63, Synonyms, English
Record 63, Textual support, English
Record number: 63, Textual support number: 1 DEF
The acceleration-sensitive torque caused by radial unbalance due to noncoincidence of the flexure axis and the center of mass of the rotor. Under constant acceleration, it appears as a rotating torque at the rotor spin frequency. When the gyro is subjected to vibratory acceleration along the spin axis at the spin frequency, this torque results in a rectified drift. 2, record 63, English, - radial%2Dunbalance%20torque
Record 63, Key term(s)
- radial unbalance torque
Record 63, French
Record 63, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 63, Main entry term, French
- couple de balourd radial
1, record 63, French, couple%20de%20balourd%20radial
masculine noun
Record 63, Abbreviations, French
Record 63, Synonyms, French
Record 63, Textual support, French
Record number: 63, Textual support number: 1 OBS
balourd : Mauvaise répartition des masses d'une pièce ou d'un ensemble tournant, qui fait que son centre de gravité n'est pas sur l'axe de rotation. 2, record 63, French, - couple%20de%20balourd%20radial
Record 63, Spanish
Record 63, Textual support, Spanish
Record 64 - internal organization data 2001-08-20
Record 64, English
Record 64, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 64, Main entry term, English
- rotor moment-of-inertia
1, record 64, English, rotor%20moment%2Dof%2Dinertia
correct
Record 64, Abbreviations, English
Record 64, Synonyms, English
- rotor moment of inertia 2, record 64, English, rotor%20moment%20of%20inertia
correct
Record 64, Textual support, English
Record number: 64, Textual support number: 1 DEF
The moment of inertia of a gyro rotor about its spin axis. 1, record 64, English, - rotor%20moment%2Dof%2Dinertia
Record number: 64, Textual support number: 1 CONT
Moment of inertia and nutation of a captured gyroscope... Objectives. 1) Measurement of system moments of inertia: To experimentally measure the composite inner gimbal plus rotor moment of inertia about the inner gimbal axis of freedom and to measure the composite rotor, inner gimbal and outer gimbal moment of inertia about the vertical axis. 3, record 64, English, - rotor%20moment%2Dof%2Dinertia
Record 64, French
Record 64, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 64, Main entry term, French
- moment d'inertie de rotor
1, record 64, French, moment%20d%27inertie%20de%20rotor
correct, masculine noun
Record 64, Abbreviations, French
Record 64, Synonyms, French
- moment d'inertie du rotor 2, record 64, French, moment%20d%27inertie%20du%20rotor
correct, masculine noun
Record 64, Textual support, French
Record 64, Spanish
Record 64, Textual support, Spanish
Record 65 - internal organization data 2001-08-20
Record 65, English
Record 65, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 65, Main entry term, English
- output-axis-angular-acceleration drift rate
1, record 65, English, output%2Daxis%2Dangular%2Dacceleration%20drift%20rate
correct
Record 65, Abbreviations, English
Record 65, Synonyms, English
Record 65, Textual support, English
Record number: 65, Textual support number: 1 DEF
Drift rate that is proportional to angular acceleration of the gyro case about the output axis, with respect to inertial space. 2, record 65, English, - output%2Daxis%2Dangular%2Dacceleration%20drift%20rate
Record 65, Key term(s)
- output axis angular acceleration drift rate
Record 65, French
Record 65, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 65, Main entry term, French
- vitesse de dérive due à l'accélération angulaire autour de l'axe de sortie
1, record 65, French, vitesse%20de%20d%C3%A9rive%20due%20%C3%A0%20l%27acc%C3%A9l%C3%A9ration%20angulaire%20autour%20de%20l%27axe%20de%20sortie
feminine noun
Record 65, Abbreviations, French
Record 65, Synonyms, French
Record 65, Textual support, French
Record 65, Spanish
Record 65, Textual support, Spanish
Record 66 - internal organization data 2001-08-20
Record 66, English
Record 66, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 66, Main entry term, English
- spin-input-rectification drift rate
1, record 66, English, spin%2Dinput%2Drectification%20drift%20rate
correct
Record 66, Abbreviations, English
Record 66, Synonyms, English
Record 66, Textual support, English
Record number: 66, Textual support number: 1 DEF
The drift rate in a single-degree-of-freedom gyro resulting from coherent oscillatory rates about the spin reference axis(SRA) and input reference axis(IRA). 2, record 66, English, - spin%2Dinput%2Drectification%20drift%20rate
Record number: 66, Textual support number: 1 OBS
It occurs only when gyro and loop dynamics allow the gimbal to move away from null in response to the rate about the input reference axis, resulting in a cross coupling of the spin reference axis rate. This drift rate is a function of the input rate amplitudes and the phase angle between them. 2, record 66, English, - spin%2Dinput%2Drectification%20drift%20rate
Record 66, Key term(s)
- spin input rectification drift rate
Record 66, French
Record 66, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 66, Main entry term, French
- vitesse de dérive de compensation sur les axes de rotation et d'entrée
1, record 66, French, vitesse%20de%20d%C3%A9rive%20de%20compensation%20sur%20les%20axes%20de%20rotation%20et%20d%27entr%C3%A9e
feminine noun
Record 66, Abbreviations, French
Record 66, Synonyms, French
Record 66, Textual support, French
Record 66, Spanish
Record 66, Textual support, Spanish
Record 67 - internal organization data 2001-08-20
Record 67, English
Record 67, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 67, Main entry term, English
- spin-output-rectification drift rate
1, record 67, English, spin%2Doutput%2Drectification%20drift%20rate
correct
Record 67, Abbreviations, English
Record 67, Synonyms, English
Record 67, Textual support, English
Record number: 67, Textual support number: 1 DEF
The drift rate in a single-degree-of-freedom gyro resulting from coherent oscillatory rates about the spin reference axis(SRA) and output reference axis(ORA). 2, record 67, English, - spin%2Doutput%2Drectification%20drift%20rate
Record number: 67, Textual support number: 1 OBS
It occurs only when gyro and loop dynamics allow the float motion to lag case motion when subjected to a rate about the output reference axis, resulting in a cross coupling of the spin reference axis rate. This drift rate is a function of the input rate amplitudes and the phase angle between them. 2, record 67, English, - spin%2Doutput%2Drectification%20drift%20rate
Record 67, French
Record 67, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 67, Main entry term, French
- vitesse de dérive de compensation sur les axes de rotation et de sortie
1, record 67, French, vitesse%20de%20d%C3%A9rive%20de%20compensation%20sur%20les%20axes%20de%20rotation%20et%20de%20sortie
feminine noun
Record 67, Abbreviations, French
Record 67, Synonyms, French
Record 67, Textual support, French
Record 67, Spanish
Record 67, Textual support, Spanish
Record 68 - internal organization data 2001-08-20
Record 68, English
Record 68, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 68, Main entry term, English
- spin reference axis
1, record 68, English, spin%20reference%20axis
correct
Record 68, Abbreviations, English
- SRA 2, record 68, English, SRA
correct
Record 68, Synonyms, English
Record 68, Textual support, English
Record number: 68, Textual support number: 1 DEF
An axis normal to the input reference axis and nominally parallel to the spin axis when the gyro output has a specified value, usually null. 3, record 68, English, - spin%20reference%20axis
Record number: 68, Textual support number: 1 CONT
A gyroscope has three sensitive axes of interest. These are (1) spin reference axis (SRA), (2) input axis (IA), and (3) output axis (OA). The spin reference axis is the position of the spin axis at its null position as indicated by a pickoff null signal. 4, record 68, English, - spin%20reference%20axis
Record 68, French
Record 68, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 68, Main entry term, French
- axe de référence de rotation
1, record 68, French, axe%20de%20r%C3%A9f%C3%A9rence%20de%20rotation
correct, masculine noun
Record 68, Abbreviations, French
Record 68, Synonyms, French
Record 68, Textual support, French
Record number: 68, Textual support number: 1 OBS
Les gyroscopes. Ce sont des appareils capables de mesurer la vitesse de rotation absolue de Chandra selon deux axes différents, et dont le fonctionnement repose sur l'utilisation d'une toupie gyroscopique; celle-ci, animée d'une vitesse de rotation élevée (plusieurs milliers de tours par minute), possède une «rigidité inertielle» qui la maintient selon une direction fixe : si l'on applique un couple (une force qui tend à mettre un solide en rotation) sur l'axe de rotation de la toupie, celle-ci s'écarte beaucoup moins vite de sa direction initiale que si elle n'était pas animée d'un mouvement de rotation élevée [...] La direction de l'axe de rotation de la toupie représente en fait une direction de référence aisément matérialisable et le principe consiste à estimer les mouvements du télescope par rapport à cette direction de référence. 2, record 68, French, - axe%20de%20r%C3%A9f%C3%A9rence%20de%20rotation
Record 68, Key term(s)
- axe de rotation de référence
Record 68, Spanish
Record 68, Textual support, Spanish
Record 69 - internal organization data 2001-08-20
Record 69, English
Record 69, Subject field(s)
- Measuring Instruments (Engineering)
- Optics
- Navigation Instruments
Record 69, Main entry term, English
- optical gyro
1, record 69, English, optical%20gyro
correct
Record 69, Abbreviations, English
Record 69, Synonyms, English
- optical gyroscope 2, record 69, English, optical%20gyroscope
correct
Record 69, Textual support, English
Record number: 69, Textual support number: 1 CONT
A more advanced type of gyro is the optical gyroscope. These devices are based on two counter-rotating beams of light travelling in a ring-like structure. The interaction of the two light beams produces a standing wave pattern. If the ring is then rotated about its centre axis(think of a torus spinning around its core), one of the beams has to travel a slightly longer distance, and the other a slightly shorter distance to get back to where they started. This will cause a shift in the pattern of the standing wave, and this can be measured to determine the rate of rotation. 3, record 69, English, - optical%20gyro
Record number: 69, Textual support number: 2 CONT
Most people would remember the classic rotating disc gyroscope, which belongs to the mechanical group. One of today’s high precision gyros is still the mechanical, rotating gyro; however it is dependent on linear accelerations because of its mechanical measuring principle. The optical group comprises the fibre optic- and laser types. These use the Sagnac Effect (named after its French discoverer), which, when the sensor is turned, results in a difference in transit time between two light waves passing through the same optical path but in opposite directions. Optical gyros therefore do not depend on acceleration as gyros in the mechanical group. This is one of their biggest advantages ... 4, record 69, English, - optical%20gyro
Record 69, French
Record 69, Domaine(s)
- Instruments de mesure (Ingénierie)
- Optique
- Instruments de navigation
Record 69, Main entry term, French
- gyroscope optique
1, record 69, French, gyroscope%20optique
correct, masculine noun
Record 69, Abbreviations, French
Record 69, Synonyms, French
Record 69, Textual support, French
Record number: 69, Textual support number: 1 CONT
Réaliser un gyroscope optique d'un prix de revient de quelques centaines de francs. Voilà une prouesse technologique quand on sait que les systèmes actuels, les gyroscopes laser, coûtent entre 100 000 francs et 1 million de francs. La solution mise au point par Mohamed Bouamra, chercheur à l'École nationale supérieure de physique de Strasbourg, tient à une habile substitution de technologies : une simple diode électroluminescente remplace le laser, tandis que des banales fibres optiques multimodes prennent la place des coûteuses fibres monomodes. 2, record 69, French, - gyroscope%20optique
Record number: 69, Textual support number: 2 CONT
[...] certains laboratoires ont étudié divers dispositifs de mesure des rotations absolues ne présentant qu'une analogie assez lointaine avec les gyroscopes classiques. Ce sont les gyroscopes à vibrations [...]; les gyroscopes nucléaires [...]; les gyroscopes optiques, exploitant les propriétés de la lumière cohérente [...] 3, record 69, French, - gyroscope%20optique
Record 69, Spanish
Record 69, Textual support, Spanish
Record 70 - internal organization data 2001-08-17
Record 70, English
Record 70, Subject field(s)
- Couplings (Mechanical Components)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 70, Main entry term, English
- gimbal freedom
1, record 70, English, gimbal%20freedom
correct
Record 70, Abbreviations, English
Record 70, Synonyms, English
Record 70, Textual support, English
Record number: 70, Textual support number: 1 DEF
In a gyro, the maximum angular displacement of a gimbal about its axis. 2, record 70, English, - gimbal%20freedom
Record 70, French
Record 70, Domaine(s)
- Accouplements (Composants mécaniques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 70, Main entry term, French
- débattement
1, record 70, French, d%C3%A9battement
masculine noun
Record 70, Abbreviations, French
Record 70, Synonyms, French
- débattement du cardan 2, record 70, French, d%C3%A9battement%20du%20cardan
masculine noun
Record 70, Textual support, French
Record number: 70, Textual support number: 1 CONT
Dans une même famille de [gyromètres], les grandeurs suivantes sont généralement fixées : moment cinétique; moment d'inertie; débattement. 3, record 70, French, - d%C3%A9battement
Record number: 70, Textual support number: 2 CONT
Pulvérisateur PORTER M. L'attelage s'effectue aisément grâce à l'attelage semi-automatique. La pompe est implantée à l'arrière permettant un grand débattement du cardan. Les vannes sont regroupées pour faciliter les manipulations et cela en toute sécurité. 2, record 70, French, - d%C3%A9battement
Record 70, Spanish
Record 70, Textual support, Spanish
Record 71 - internal organization data 2001-08-16
Record 71, English
Record 71, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 71, Main entry term, English
- angular acceleration sensitivity
1, record 71, English, angular%20acceleration%20sensitivity
correct
Record 71, Abbreviations, English
Record 71, Synonyms, English
Record 71, Textual support, English
Record number: 71, Textual support number: 1 DEF
The ratio of drift rate due to angular acceleration about a gyro axis divided by the angular acceleration causing it. 2, record 71, English, - angular%20acceleration%20sensitivity
Record 71, French
Record 71, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 71, Main entry term, French
- sensibilité à l'accélération angulaire
1, record 71, French, sensibilit%C3%A9%20%C3%A0%20l%27acc%C3%A9l%C3%A9ration%20angulaire
feminine noun
Record 71, Abbreviations, French
Record 71, Synonyms, French
Record 71, Textual support, French
Record 71, Spanish
Record 71, Textual support, Spanish
Record 72 - internal organization data 2001-08-16
Record 72, English
Record 72, Subject field(s)
- Rheology
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
- Aircraft Piloting and Navigation
Record 72, Main entry term, English
- elastic-restraint drift rate
1, record 72, English, elastic%2Drestraint%20drift%20rate
correct
Record 72, Abbreviations, English
Record 72, Synonyms, English
- elastic restraint drift rate 2, record 72, English, elastic%20restraint%20drift%20rate
correct
Record 72, Textual support, English
Record number: 72, Textual support number: 1 DEF
The component of systematic drift rate that is proportional to the angular displacement of a gyro gimbal about an output axis. 1, record 72, English, - elastic%2Drestraint%20drift%20rate
Record number: 72, Textual support number: 1 OBS
The relationship of this component of drift rate to gimbal angle can be stated by means of a coefficient having dimensions of angular displacement per unit time per unit angle. This coefficient is equal to the elastic-restraint coefficient divided by angular momentum. 1, record 72, English, - elastic%2Drestraint%20drift%20rate
Record 72, French
Record 72, Domaine(s)
- Rhéologie
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
- Pilotage et navigation aérienne
Record 72, Main entry term, French
- taux de dérive due à la déformation élastique du cadre
1, record 72, French, taux%20de%20d%C3%A9rive%20due%20%C3%A0%20la%20d%C3%A9formation%20%C3%A9lastique%20du%20cadre
masculine noun
Record 72, Abbreviations, French
Record 72, Synonyms, French
Record 72, Textual support, French
Record 72, Spanish
Record 72, Textual support, Spanish
Record 73 - internal organization data 2001-08-16
Record 73, English
Record 73, Subject field(s)
- Suspension (Mechanical Components)
- Navigation Instruments
Record 73, Main entry term, English
- flexure
1, record 73, English, flexure
correct, noun
Record 73, Abbreviations, English
Record 73, Synonyms, English
Record 73, Textual support, English
Record number: 73, Textual support number: 1 DEF
An elastic element in a dynamically tuned gyro rotor suspension system, which permits limited angular freedom about axes perpendicular to the spin axis. 2, record 73, English, - flexure
Record 73, French
Record 73, Domaine(s)
- Suspension (Composants mécaniques)
- Instruments de navigation
Record 73, Main entry term, French
- joint flexible
1, record 73, French, joint%20flexible
masculine noun
Record 73, Abbreviations, French
Record 73, Synonyms, French
Record 73, Textual support, French
Record 73, Spanish
Record 73, Textual support, Spanish
Record 74 - internal organization data 2001-08-16
Record 74, English
Record 74, Subject field(s)
- Astrophysics and Cosmography
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
- Aircraft Piloting and Navigation
Record 74, Main entry term, English
- dynamic time constant
1, record 74, English, dynamic%20time%20constant
correct
Record 74, Abbreviations, English
Record 74, Synonyms, English
Record 74, Textual support, English
Record number: 74, Textual support number: 1 DEF
The time required for the rotor to move through an angle equal to 63 degrees of its final value following a step change in case angular position about an axis normal to the spin axis with the gyro operating open loop. 1, record 74, English, - dynamic%20time%20constant
Record number: 74, Textual support number: 1 OBS
The value depends on the gimbal and rotor damping and drag forces, and is inversely proportional to quadrature spring rate. 1, record 74, English, - dynamic%20time%20constant
Record 74, French
Record 74, Domaine(s)
- Astrophysique et cosmographie
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
- Pilotage et navigation aérienne
Record 74, Main entry term, French
- constante de temps dynamique
1, record 74, French, constante%20de%20temps%20dynamique
feminine noun
Record 74, Abbreviations, French
Record 74, Synonyms, French
Record 74, Textual support, French
Record 74, Spanish
Record 74, Textual support, Spanish
Record 75 - internal organization data 2001-08-16
Record 75, English
Record 75, Subject field(s)
- General Mechanics (Physics)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
Record 75, Main entry term, English
- angular vibration sensitivity
1, record 75, English, angular%20vibration%20sensitivity
correct
Record 75, Abbreviations, English
Record 75, Synonyms, English
Record 75, Textual support, English
Record number: 75, Textual support number: 1 DEF
[Of a gyro] The ratio of the change in output due to angular vibration about a sensor axis divided by the amplitude of the angular vibration causing it. 1, record 75, English, - angular%20vibration%20sensitivity
Record 75, French
Record 75, Domaine(s)
- Mécanique générale (Physique)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
Record 75, Main entry term, French
- sensibilité aux vibrations angulaires
1, record 75, French, sensibilit%C3%A9%20aux%20vibrations%20angulaires
feminine noun
Record 75, Abbreviations, French
Record 75, Synonyms, French
Record 75, Textual support, French
Record number: 75, Textual support number: 1 OBS
Influence des vibrations angulaires de l'axe de rotation. 2, record 75, French, - sensibilit%C3%A9%20aux%20vibrations%20angulaires
Record 75, Spanish
Record 75, Textual support, Spanish
Record 76 - internal organization data 2001-08-14
Record 76, English
Record 76, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 76, Main entry term, English
- azimuth tachometer
1, record 76, English, azimuth%20tachometer
correct
Record 76, Abbreviations, English
Record 76, Synonyms, English
Record 76, Textual support, English
Record number: 76, Textual support number: 1 CONT
Heading rapid alignment. In trying to achieve the highest possible torquing rates during rapid and main align, the DG [directional gyro] is unconventionally torqued at the azimuth axis. The movement of the DG sensitive axis is restricted to [plus or minus] 1 degree in the pick-off torquer, Microsyn, by a hard stop. When the torque is applied, the sensitive axis locks at its limits of [plus or minus] 1 degree and effectively assists in positioning the azimuth gimbal. During the alignment, an azimuth tachometer supplies the required damping to prevent overshooting. The pick-off torquer, when forced against its stops, generates an error signal. 1, record 76, English, - azimuth%20tachometer
Record 76, French
Record 76, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 76, Main entry term, French
- tachymètre azimutal
1, record 76, French, tachym%C3%A8tre%20azimutal
masculine noun
Record 76, Abbreviations, French
Record 76, Synonyms, French
Record 76, Textual support, French
Record number: 76, Textual support number: 1 CONT
Alignement rapide de cap. En essayant d'obtenir les couples les plus élevés possibles durant l'alignement rapide et l'alignement principal, on applique le couple à l'axe azimutal du directionnel de façon inhabituelle. Le mouvement de l'axe sensible du directionnel est restreint à [plus ou moins] 1 degré dans le moteur couple de détection, (microsyn) par une butée dure. Lorsque le couple est appliqué, l'axe sensible se verrouille à sa limite de [plus ou moins] 1 degré et aide de façon efficace à mettre en position le cardan azimutal. Durant l'alignement, un tachymètre azimutal fournit l'amortissement nécessaire pour empêcher l'alignement de dépasser les bornes. Le moteur couple de détection, lorsqu'il est forcé contre ces butées, engendre un signal d'erreur. 1, record 76, French, - tachym%C3%A8tre%20azimutal
Record 76, Spanish
Record 76, Textual support, Spanish
Record 77 - internal organization data 2001-08-14
Record 77, English
Record 77, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 77, Main entry term, English
- gyro error signal
1, record 77, English, gyro%20error%20signal
correct
Record 77, Abbreviations, English
Record 77, Synonyms, English
Record 77, Textual support, English
Record number: 77, Textual support number: 1 CONT
The transfer mode should only be used after rapid alignment sequences have been completed in order to reduce the possibilities of initial drift associated with a cold start... With the transfer gyro properly aligned, calibrated and connected to the plaftorm harness, the transfer command switch on the transfer handle is held depressed for 15 seconds, actuating relays [x, y, z]. The transfer gyro error signal is passed to the azimuth gimbal torque motor which aligns the spin axis of the platform DG [directional gyro] to that of the transfer gyro heading, derived by placing the transfer gyro on the prealigned mount, to the fore and aft line of the A/C [aircraft]. 1, record 77, English, - gyro%20error%20signal
Record 77, French
Record 77, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 77, Main entry term, French
- signal d'erreur du gyroscope
1, record 77, French, signal%20d%27erreur%20du%20gyroscope
correct, masculine noun
Record 77, Abbreviations, French
Record 77, Synonyms, French
Record 77, Textual support, French
Record number: 77, Textual support number: 1 CONT
Le mode de transfert ne devrait être utilisé qu'après que les phases de l'alignement rapide ont été complétées afin de réduire les possibilités de dérive initiale associée à un départ à froid. [...] Lorsque le gyroscope de transfert est correctement aligné, calibré et relié au harnais de la plate-forme, l'interrupteur de commande sur la manette de transfert est tenu poussé pendant 15 secondes pour actionner les relais [x,y,z]. Le signal d'erreur du gyroscope de transfert est passé au moteur couple du cardan azimutal qui aligne l'axe de rotation du directionnel sur celui du cap du gyroscope de transfert, dérivé en plaçant le gyroscope de transfert sur la monture déjà alignée sur l'axe longitudinal de l'avion. 1, record 77, French, - signal%20d%27erreur%20du%20gyroscope
Record 77, Spanish
Record 77, Textual support, Spanish
Record 78 - internal organization data 2001-08-14
Record 78, English
Record 78, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 78, Main entry term, English
- transfer gyro error signal
1, record 78, English, transfer%20gyro%20error%20signal
correct
Record 78, Abbreviations, English
Record 78, Synonyms, English
Record 78, Textual support, English
Record number: 78, Textual support number: 1 CONT
The transfer mode should only be used after rapid alignment sequences have been completed in order to reduce the possibilities of initial drift associated with a cold start... With the transfer gyro properly aligned, calibrated and connected to the plaftorm harness, the transfer command switch on the transfer handle is held depressed for 15 seconds, actuating relays [x, y, z]. The transfer gyro error signal is passed to the azimuth gimbal torque motor which aligns the spin axis of the platform DG [directional gyro] to that of the transfer gyro heading, derived by placing the transfer gyro on the prealigned mount, to the fore and aft line of the A/C [aircraft]. 1, record 78, English, - transfer%20gyro%20error%20signal
Record 78, French
Record 78, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 78, Main entry term, French
- signal d'erreur du gyroscope de transfert
1, record 78, French, signal%20d%27erreur%20du%20gyroscope%20de%20transfert
correct, masculine noun
Record 78, Abbreviations, French
Record 78, Synonyms, French
Record 78, Textual support, French
Record number: 78, Textual support number: 1 CONT
Le mode de transfert ne devrait être utilisé qu'après que les phases de l'alignement rapide ont été complétées afin de réduire les possibilités de dérive initiale associée à un départ à froid. [...] Lorsque le gyroscope de transfert est correctement aligné, calibré et relié [à] la plate-forme, l'interrupteur de commande sur la manette de transfert est tenu poussé pendant 15 secondes pour actionner les relais [x,y,z]. Le signal d'erreur du gyroscope de transfert est passé au moteur couple du cardan azimutal qui aligne l'axe de rotation du directionnel sur celui du cap du gyroscope de transfert, dérivé en plaçant le gyroscope de transfert sur la monture déjà alignée sur l'axe longitudinal de l'avion. 1, record 78, French, - signal%20d%27erreur%20du%20gyroscope%20de%20transfert
Record 78, Spanish
Record 78, Textual support, Spanish
Record 79 - internal organization data 2001-08-14
Record 79, English
Record 79, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 79, Main entry term, English
- pick-off torquer
1, record 79, English, pick%2Doff%20torquer
correct
Record 79, Abbreviations, English
Record 79, Synonyms, English
Record 79, Textual support, English
Record number: 79, Textual support number: 1 CONT
Heading rapid alignment. In trying to achieve the highest possible torquing rates during rapid and main align, the DG [directional gyro] is unconventionally torqued at the azimuth axis. The movement of the DG sensitive axis is restricted to [plus or minus] 1 degree in the pick-off torquer, Microsyn, by a hard stop. When the torque is applied, the sensitive axis locks at its limits of [plus or minus] 1 degree and effectively assists in positioning the azimuth gimbal. During the alignment, an azimuth tachometer supplies the required damping to prevent overshooting. The pick-off torquer, when forced against its stops, generates an error signal. 1, record 79, English, - pick%2Doff%20torquer
Record 79, French
Record 79, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 79, Main entry term, French
- moteur couple de détection
1, record 79, French, moteur%20couple%20de%20d%C3%A9tection
correct, masculine noun
Record 79, Abbreviations, French
Record 79, Synonyms, French
Record 79, Textual support, French
Record number: 79, Textual support number: 1 CONT
Alignement rapide de cap. En essayant d'obtenir les couples les plus élevés possibles durant l'alignement rapide et l'alignement principal, on applique le couple à l'axe azimutal du directionnel de façon inhabituelle. Le mouvement de l'axe sensible du directionnel est restreint à [plus ou moins] 1 degré dans le moteur couple de détection, (microsyn) par une butée dure. Lorsque le couple est appliqué, l'axe sensible se verrouille à sa limite de [plus ou moins] 1 degré et aide de façon efficace à mettre en position le cardan azimutal. Durant l'alignement, un tachymètre azimutal fournit l'amortissement nécessaire pour empêcher l'alignement de dépasser les bornes. Le moteur couple de détection, lorsqu'il est forcé contre ces butées, engendre un signal d'erreur. 1, record 79, French, - moteur%20couple%20de%20d%C3%A9tection
Record 79, Spanish
Record 79, Textual support, Spanish
Record 80 - internal organization data 2001-08-14
Record 80, English
Record 80, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 80, Main entry term, English
- transfer gyro heading
1, record 80, English, transfer%20gyro%20heading
correct
Record 80, Abbreviations, English
Record 80, Synonyms, English
Record 80, Textual support, English
Record number: 80, Textual support number: 1 CONT
The transfer mode should only be used after rapid alignment sequences have been completed in order to reduce the possibilities of initial drift associated with a cold start.... With the transfer gyro properly aligned, calibrated and connected to the plaftorm harness, the transfer command switch on the transfer handle is held depressed for 15 seconds, actuating relays [x, y, z]. The transfer gyro error signal is passed to the azimuth gimbal torque motor which aligns the spin axis of the platform DG [directional gyro] to that of the transfer gyro heading, derived by placing the transfer gyro on the prealigned mount, to the fore and aft line of the A/C [aircraft]. 1, record 80, English, - transfer%20gyro%20heading
Record 80, French
Record 80, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 80, Main entry term, French
- cap du gyroscope de transfert
1, record 80, French, cap%20du%20gyroscope%20de%20transfert
correct, masculine noun
Record 80, Abbreviations, French
Record 80, Synonyms, French
Record 80, Textual support, French
Record number: 80, Textual support number: 1 CONT
Le mode de transfert ne devrait être utilisé qu'après que les phases de l'alignement rapide ont été complétées afin de réduire les possibilités de dérive initiale associée à un départ à froid. [...] Lorsque le gyroscope de transfert est correctement aligné, calibré et relié [à] la plate-forme, l'interrupteur de commande sur la manette de transfert est tenu poussé pendant 15 secondes pour actionner les relais [x,y,z]. Le signal d'erreur du gyroscope de transfert est passé au moteur couple du cardan azimutal qui aligne l'axe de rotation du directionnel sur celui du cap du gyroscope de transfert, dérivé en plaçant le gyroscope de transfert sur la monture déjà alignée sur l'axe longitudinal de l'avion. 1, record 80, French, - cap%20du%20gyroscope%20de%20transfert
Record 80, Spanish
Record 80, Textual support, Spanish
Record 81 - internal organization data 2001-08-14
Record 81, English
Record 81, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 81, Main entry term, English
- azimuth axis
1, record 81, English, azimuth%20axis
correct
Record 81, Abbreviations, English
Record 81, Synonyms, English
Record 81, Textual support, English
Record number: 81, Textual support number: 1 CONT
Heading rapid alignment. In trying to achieve the highest possible torquing rates during rapid and main align, the DG [directional gyro] is unconventionally torqued at the azimuth axis. The movement of the DG sensitive axis is restricted to [plus or minus] 1 degree in the pick-off torquer, Microsyn, by a hard stop. When the torque is applied, the sensitive axis locks at its limits of [plus or minus] 1 degree and effectively assists in positioning the azimuth gimbal. During the alignment, an azimuth tachometer supplies the required damping to prevent overshooting. The pick-off torquer, when forced against its stops, generates and error signal. 1, record 81, English, - azimuth%20axis
Record 81, French
Record 81, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 81, Main entry term, French
- axe azimutal
1, record 81, French, axe%20azimutal
correct, masculine noun
Record 81, Abbreviations, French
Record 81, Synonyms, French
- axe d'azimut 2, record 81, French, axe%20d%27azimut
correct, masculine noun
Record 81, Textual support, French
Record number: 81, Textual support number: 1 CONT
Alignement rapide de cap. En essayant d'obtenir les couples les plus élevés possibles durant l'alignement rapide et l'alignement principal, on applique le couple à l'axe azimutal du directionnel de façon inhabituelle. Le mouvement de l'axe sensible du directionnel est restreint à [plus ou moins] 1 degré dans le moteur couple de détection, (microsyn) par une butée dure. Lorsque le couple est appliqué, l'axe sensible se verrouille à sa limite de [plus ou moins] 1 degré et aide de façon efficace à mettre en position le cardan azimutal. Durant l'alignement, un tachymètre azimutal fournit l'amortissement nécessaire pour empêcher l'alignement de dépasser les bornes. Le moteur couple de détection, lorsqu'il est forcé contre ces butées, engendre un signal d'erreur. 1, record 81, French, - axe%20azimutal
Record 81, Key term(s)
- axe azimutal du directionnel
- axe azimutal du gyroscope directionnel
Record 81, Spanish
Record 81, Textual support, Spanish
Record 82 - internal organization data 2001-08-13
Record 82, English
Record 82, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 82, Main entry term, English
- DG sensitive axis
1, record 82, English, DG%20sensitive%20axis
correct
Record 82, Abbreviations, English
Record 82, Synonyms, English
Record 82, Textual support, English
Record number: 82, Textual support number: 1 CONT
Heading rapid alignment. In trying to achieve the highest possible torquing rates during rapid and main align, the DG [directional gyro] is unconventionally torqued at the azimuth axis. The movement of the DG sensitive axis is restricted to [plus or minus] 1 degree in the pick-off torquer, Microsyn, by a hard stop. When the torque is applied, the sensitive axis locks at its limits of [plus or minus] 1 degree and effectively assists in positioning the azimuth gimbal. During the alignment, an azimuth tachometer supplies the required damping to prevent overshooting. The pick-off torquer, when forced against its stops, generates and error signal. 1, record 82, English, - DG%20sensitive%20axis
Record 82, Key term(s)
- directional gyroscope sensitive axis
- directional gyro sensitive axis
Record 82, French
Record 82, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 82, Main entry term, French
- axe sensible du directionnel
1, record 82, French, axe%20sensible%20du%20directionnel
correct, masculine noun
Record 82, Abbreviations, French
Record 82, Synonyms, French
Record 82, Textual support, French
Record number: 82, Textual support number: 1 CONT
Alignement rapide de cap. En essayant d'obtenir les couples les plus élevés possibles durant l'alignement rapide et l'alignement principal, on applique le couple à l'axe azimutal du directionnel de façon inhabituelle. Le mouvement de l'axe sensible du directionnel est restreint à [plus ou moins] 1 degré dans le moteur couple de détection, (microsyn) par une butée dure. Lorsque le couple est appliqué, l'axe sensible se verrouille à sa limite de [plus ou moins] 1 degré et aide de façon efficace à mettre en position le cardan azimutal. Durant l'alignement, un tachymètre azimutal fournit l'amortissement nécessaire pour empêcher l'alignement de dépasser les bornes. Le moteur couple de détection, lorsqu'il est forcé contre ces butées, engendre un signal d'erreur. 1, record 82, French, - axe%20sensible%20du%20directionnel
Record number: 82, Textual support number: 1 OBS
L'instrument fondamental d'une centrale inertielle est ainsi l'accéléromètre, qui mesure l'accélération dans une direction privilégiée, appelée axe sensible. Trois accéléromètres travaillent selon trois axes sensibles parfaitement déterminés par des gyroscopes associés. 2, record 82, French, - axe%20sensible%20du%20directionnel
Record 82, Key term(s)
- axe sensible du gyroscope directionnel
Record 82, Spanish
Record 82, Textual support, Spanish
Record 83 - internal organization data 2001-08-13
Record 83, English
Record 83, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 83, Main entry term, English
- hard stop
1, record 83, English, hard%20stop
correct
Record 83, Abbreviations, English
Record 83, Synonyms, English
Record 83, Textual support, English
Record number: 83, Textual support number: 1 CONT
Heading rapid alignment. In trying to achieve the highest possible torquing rates during rapid and main align, the DG [directional gyro] is unconventionally torqued at the azimuth axis. The movement of the DG sensitive axis is restricted to [plus or minus] 1 degree in the pick-off torquer, Microsyn, by a hard stop. When the torque is applied, the sensitive axis locks at its limits of [plus or minus] 1 degree and effectively assists in positioning the azimuth gimbal. During the alignment, an azimuth tachometer supplies the required damping to prevent overshooting. The pick-off torquer, when forced against its stops, generates and error signal. 1, record 83, English, - hard%20stop
Record 83, French
Record 83, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 83, Main entry term, French
- butée dure
1, record 83, French, but%C3%A9e%20dure
feminine noun
Record 83, Abbreviations, French
Record 83, Synonyms, French
Record 83, Textual support, French
Record number: 83, Textual support number: 1 CONT
Alignement rapide de cap. En essayant d'obtenir les couples les plus élevés possibles durant l'alignement rapide et l'alignement principal, on applique le couple à l'axe azimutal du directionnel de façon inhabituelle. Le mouvement de l'axe sensible du directionnel est restreint à [plus ou moins] 1 degré dans le moteur couple de détection, (microsyn) par une butée dure. Lorsque le couple est appliqué, l'axe sensible se verrouille à sa limite de [plus ou moins] 1 degré et aide de façon efficace à mettre en position le cardan azimutal. Durant l'alignement, un tachymètre azimutal fournit l'amortissement nécessaire pour empêcher l'alignement de dépasser les bornes. Le moteur couple de détection, lorsqu'il est forcé contre ces butées, engendre un signal d'erreur. 1, record 83, French, - but%C3%A9e%20dure
Record 83, Spanish
Record 83, Textual support, Spanish
Record 84 - internal organization data 2001-08-13
Record 84, English
Record 84, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 84, Main entry term, English
- pick-off reversal
1, record 84, English, pick%2Doff%20reversal
correct
Record 84, Abbreviations, English
Record 84, Synonyms, English
Record 84, Textual support, English
Record number: 84, Textual support number: 1 CONT
During the first phase of rapid align, the liquid level signal controls the platform pitch erection. However... to avoid a large vertical error when the control of the platform pitch gimbal switches to the pitch pick-off in the second phase of rapid alignment, a phase reversal is required. The phase reversal is designed to keep all of the signal phasing correct while reversing the phase of the gyro pick-off signal. If the phase of the gyro pick-off were not reversed, the combined signals could null with a non-level gimbal and a non-vertical gyro spin axis. With the pick-off reversal, the same type of cancellation occurs but the gyro spin axis is vertical. 1, record 84, English, - pick%2Doff%20reversal
Record 84, Key term(s)
- gyroscope pick-off reversal
- gyro pick-off reversal
Record 84, French
Record 84, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 84, Main entry term, French
- inversion du signal détecteur
1, record 84, French, inversion%20du%20signal%20d%C3%A9tecteur
feminine noun
Record 84, Abbreviations, French
Record 84, Synonyms, French
Record 84, Textual support, French
Record number: 84, Textual support number: 1 CONT
Durant le première phase de l'alignement rapide, le signal du niveau à liquide commande l'érection en tangage de la plate-forme. Cependant, il est nécessaire d'inverser la phase afin d'éviter un signal important d'erreur de verticale lorsque la commande du cardan de tangage de la plate-forme est donnée au détecteur de tangage durant la deuxième phase de l'alignement rapide. Cette inversion de phase est conçue pour garder la mise en phase correcte du signal lorsque la phase du signal détecteur du gyroscope est renversée. Si la phase du signal détecteur du gyroscope n'était pas inversée, les signaux composés pourraient devenir nuls avec un cardan qui ne serait pas correctement en érection et un axe de rotation qui ne serait pas à la verticale. En effectuant l'inversion du signal détecteur, le même genre d'annulation se produit mais l'axe de rotation du gyroscope est à la verticale. 1, record 84, French, - inversion%20du%20signal%20d%C3%A9tecteur
Record 84, Key term(s)
- inversion du signal détecteur du gyroscope
Record 84, Spanish
Record 84, Textual support, Spanish
Record 85 - internal organization data 2001-08-13
Record 85, English
Record 85, Subject field(s)
- Applications of Electronics
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 85, Main entry term, English
- gyro pick-off signal
1, record 85, English, gyro%20pick%2Doff%20signal
correct
Record 85, Abbreviations, English
Record 85, Synonyms, English
Record 85, Textual support, English
Record number: 85, Textual support number: 1 CONT
During the first phase of rapid align, the liquid level signal controls the platform pitch erection. However... to avoid a large vertical error when the control of the platform pitch gimbal switches to the pitch pick-off in the second phase of rapid alignment, a phase reversal is required. The phase reversal is designed to keep all of the signal phasing correct while reversing the phase of the gyro pick-off signal. If the phase of the gyro pick-off were not reversed, the combined signals could null with a non-level gimbal and a non-vertical gyro spin axis. With the pick-off reversal, the same type of cancellation occurs but the gyro spin axis is vertical. 1, record 85, English, - gyro%20pick%2Doff%20signal
Record 85, Key term(s)
- gyroscope pick-off signal
- gyro pick-off
Record 85, French
Record 85, Domaine(s)
- Applications de l'électronique
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 85, Main entry term, French
- signal détecteur du gyroscope
1, record 85, French, signal%20d%C3%A9tecteur%20du%20gyroscope
masculine noun
Record 85, Abbreviations, French
Record 85, Synonyms, French
- signal détecteur 1, record 85, French, signal%20d%C3%A9tecteur
masculine noun
Record 85, Textual support, French
Record number: 85, Textual support number: 1 CONT
Durant la première phase de l'alignement rapide, le signal du niveau à liquide commande l'érection en tangage de la plate-forme. Cependant, il est nécessaire d'inverser la phase afin d'éviter un signal important d'erreur de verticale lorsque la commande du cardan de tangage de la plate-forme est donnée au détecteur de tangage durant la deuxième phase de l'alignement rapide. Cette inversion de phase est conçue pour garder la mise en phase correcte du signal lorsque la phase du signal détecteur du gyroscope est renversée. Si la phase du signal détecteur du gyroscope n'était pas inversée, les signaux composés pourraient devenir nuls avec un cardan qui ne serait pas correctement en érection et un axe de rotation qui ne serait pas à la verticale. En effectuant l'inversion du signal détecteur, le même genre d'annulation se produit mais l'axe de rotation du gyroscope est à la verticale. 1, record 85, French, - signal%20d%C3%A9tecteur%20du%20gyroscope
Record 85, Spanish
Record 85, Textual support, Spanish
Record 86 - internal organization data 2001-08-13
Record 86, English
Record 86, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 86, Main entry term, English
- vertical rapid align loop
1, record 86, English, vertical%20rapid%20align%20loop
correct
Record 86, Abbreviations, English
Record 86, Synonyms, English
Record 86, Textual support, English
Record number: 86, Textual support number: 1 CONT
Vertical rapid alignment. The purpose of the vertical rapid align loop is to align the VG [vertical gyro] spin axis parallel to the local vertical and to align the sensitive axis of the liquid levels perpendicular to the local vertical within 1 degree of arc in less than 60 seconds of time at a temperature of 25° C. 1, record 86, English, - vertical%20rapid%20align%20loop
Record 86, Key term(s)
- vertical rapid alignment loop
Record 86, French
Record 86, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 86, Main entry term, French
- cadre d'alignement rapide à la verticale
1, record 86, French, cadre%20d%27alignement%20rapide%20%C3%A0%20la%20verticale
masculine noun
Record 86, Abbreviations, French
Record 86, Synonyms, French
Record 86, Textual support, French
Record number: 86, Textual support number: 1 CONT
Alignement rapide sur la verticale. Le but du cadre d'alignement rapide à la verticale est d'aligner l'axe de rotation du VG [gyroscope de verticale] parallèlement à la verticale locale et d'aligner l'axe sensible des niveaux à liquide perpendiculairement à la verticale locale à 1 degré près en moins de 60 secondes et à une température de 25° C. 1, record 86, French, - cadre%20d%27alignement%20rapide%20%C3%A0%20la%20verticale
Record 86, Spanish
Record 86, Textual support, Spanish
Record 87 - internal organization data 2001-08-13
Record 87, English
Record 87, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 87, Main entry term, English
- pitch vertical alignment
1, record 87, English, pitch%20vertical%20alignment
correct
Record 87, Abbreviations, English
Record 87, Synonyms, English
Record 87, Textual support, English
Record number: 87, Textual support number: 1 CONT
During the second phase of alignment, the pitch component of the resolved LL [liquid level] is used to precess the gyro pitch axis in a direction to null the pitch component and thereby improve the pitch vertical alignment accuracy. 1, record 87, English, - pitch%20vertical%20alignment
Record 87, French
Record 87, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 87, Main entry term, French
- alignement vertical de tangage
1, record 87, French, alignement%20vertical%20de%20tangage
masculine noun
Record 87, Abbreviations, French
Record 87, Synonyms, French
Record 87, Textual support, French
Record number: 87, Textual support number: 1 CONT
Durant la deuxième phase de l'alignement, la composante de tangage du signal venant des niveaux à liquide est utilisée pour faire précessionner l'axe de tangage du gyroscope dans une direction telle qu'elle annule la composante de tangage et par conséquent, améliore la précision de l'alignement vertical de tangage. 1, record 87, French, - alignement%20vertical%20de%20tangage
Record 87, Spanish
Record 87, Textual support, Spanish
Record 88 - internal organization data 2001-08-10
Record 88, English
Record 88, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 88, Main entry term, English
- meridian convergency error
1, record 88, English, meridian%20convergency%20error
correct
Record 88, Abbreviations, English
Record 88, Synonyms, English
- convergency error 1, record 88, English, convergency%20error
correct
Record 88, Textual support, English
Record number: 88, Textual support number: 1 CONT
Meridian convergency error is caused... by the fact that lines of longitude(meridians) converge as they approach the poles. If the spin axis of a D. G. [directional gyro] is aligned with a meridian at one point on the earth's surface and then flown to a different location in any direction other than due north or south, it will remain aligned with the original meridian because of it's tendency to remain in one orientation in space. Due to the convergency of the meridians, the gyro will not be aligned with the destination meridian. The angle between the D. G. spin axis and the destination meridian is the convergency error. 1, record 88, English, - meridian%20convergency%20error
Record number: 88, Textual support number: 1 OBS
See record "convergency of the meridians." 2, record 88, English, - meridian%20convergency%20error
Record 88, French
Record 88, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 88, Main entry term, French
- erreur due à la convergence des méridiens
1, record 88, French, erreur%20due%20%C3%A0%20la%20convergence%20des%20m%C3%A9ridiens
correct, feminine noun
Record 88, Abbreviations, French
Record 88, Synonyms, French
- erreur de convergence des méridiens 2, record 88, French, erreur%20de%20convergence%20des%20m%C3%A9ridiens
feminine noun
Record 88, Textual support, French
Record number: 88, Textual support number: 1 CONT
[...] l'erreur de convergence des méridiens est produite par le fait que les lignes de longitude (méridiens) convergent en s'approchant des pôles. En supposant que l'axe de rotation d'un gyroscope directionnel (D.G.) soit aligné sur un méridien en un point donné de la terre, et puis qu'on le transporte en un endroit différent autre que vers le nord ou le sud, l'axe de ce dernier restera aligné sur le méridien d'origine, vue sa propriété de demeurer fixe dans l'espace. Donc on peut voir qu'à cause de la convergence des méridiens, un gyroscope ne peut demeurer aligné sur le méridien de destination. L'angle formé entre l'axe de rotation du gyroscope (D.G.) et le méridien de destination est appelé «erreur de convergence des méridiens». 2, record 88, French, - erreur%20due%20%C3%A0%20la%20convergence%20des%20m%C3%A9ridiens
Record number: 88, Textual support number: 1 OBS
On utilise une représentation plane de la terre ou projection afin : de représenter sur une surface plane une partie d'un modèle ellipsoïdal de la surface de la terre. [...] Dans la plupart des projections, le Nord de la projection n'indique pas la direction du pôle Nord géographique. On introduit alors la notion de convergence des méridiens définie comme suit : la convergence des méridiens en un point est le gisement de l'image (dans la projection) du méridien qui passe par ce point. 3, record 88, French, - erreur%20due%20%C3%A0%20la%20convergence%20des%20m%C3%A9ridiens
Record number: 88, Textual support number: 2 OBS
Voir la fiche «convergence des méridiens». 4, record 88, French, - erreur%20due%20%C3%A0%20la%20convergence%20des%20m%C3%A9ridiens
Record 88, Spanish
Record 88, Textual support, Spanish
Record 89 - internal organization data 2001-08-09
Record 89, English
Record 89, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 89, Main entry term, English
- two degree of freedom VG
1, record 89, English, two%20degree%20of%20freedom%20VG
correct
Record 89, Abbreviations, English
Record 89, Synonyms, English
Record 89, Textual support, English
Record number: 89, Textual support number: 1 OBS
vertical gyro : A two-degree-of-freedom gyro with provision for maintaining its spin axis vertical; output signals are produced by gimbal angular displacements which correspond to components of the angular displacements of the base about two orthogonal axes; used in aircraft to measure both bank angle and pitch attitude. 2, record 89, English, - two%20degree%20of%20freedom%20VG
Record 89, Key term(s)
- two degree of freedom vertical gyroscope
- two-degree-of-freedom vertical gyro
Record 89, French
Record 89, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 89, Main entry term, French
- gyroscope de verticale à deux degrés de liberté
1, record 89, French, gyroscope%20de%20verticale%20%C3%A0%20deux%20degr%C3%A9s%20de%20libert%C3%A9
correct, masculine noun
Record 89, Abbreviations, French
Record 89, Synonyms, French
Record 89, Textual support, French
Record number: 89, Textual support number: 1 OBS
Degrés de liberté. Le carter du gyroscope peut être lié au bâti qui le supporte de deux façons : la liaison est telle qu'elle autorise un mouvement de rotation autour d'un seul axe, le gyroscope est dit à un degré de liberté; la liaison est telle qu'elle autorise deux mouvements de rotation autour de deux axes concourants, le gyroscope est dit à deux degrés de liberté. Le carter peut exécuter une rotation quelconque autour du point de concours des deux axes. 2, record 89, French, - gyroscope%20de%20verticale%20%C3%A0%20deux%20degr%C3%A9s%20de%20libert%C3%A9
Record 89, Key term(s)
- gyro de verticale à 2 degrés de liberté
Record 89, Spanish
Record 89, Textual support, Spanish
Record 90 - internal organization data 2001-08-07
Record 90, English
Record 90, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 90, Main entry term, English
- heading indicator gyro wheel
1, record 90, English, heading%20indicator%20gyro%20wheel
correct
Record 90, Abbreviations, English
Record 90, Synonyms, English
- directional gyro wheel 1, record 90, English, directional%20gyro%20wheel
correct
Record 90, Textual support, English
Record number: 90, Textual support number: 1 OBS
The heading indicator(also known as the directional gyro) is an instrument designed to indicate the heading of the airplane... The gyro wheel in the heading indicator is mounted vertically and spins about its horizontal axis... The spinning gyro wheel is mounted in an inner gimbal ring that is free to turn about the horizontal axis. 2, record 90, English, - heading%20indicator%20gyro%20wheel
Record 90, French
Record 90, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 90, Main entry term, French
- rotor du conservateur de cap
1, record 90, French, rotor%20du%20conservateur%20de%20cap
correct, masculine noun
Record 90, Abbreviations, French
Record 90, Synonyms, French
- rotor du gyroscope directionnel 2, record 90, French, rotor%20du%20gyroscope%20directionnel
correct, masculine noun
Record 90, Textual support, French
Record number: 90, Textual support number: 1 CONT
Le conservateur de cap (aussi appelé gyroscope directionnel) est un instrument qui indique la cap de l'avion [...] Le rotor du conservateur de cap est monté verticalement et tourne autour d'un axe horizontal [...] Ce rotor est fixé dans un cardan intérieur, lequel tourne librement autour de l'axe horizontal. 1, record 90, French, - rotor%20du%20conservateur%20de%20cap
Record number: 90, Textual support number: 1 OBS
Le conservateur de cap ou directionnel. [...] Le directionnel est [...] un gyroscope dont le rotor tourne à vitesse élevée [...] la propriété fondamentale d'un gyroscope est de garder une position fixe par rapport à l'espace. Si le pilote choisit de caler son conservateur de cap sur le nord magnétique, son directionnel lui fournira donc en permanence une indication stable de son cap magnétique. 3, record 90, French, - rotor%20du%20conservateur%20de%20cap
Record 90, Spanish
Record 90, Textual support, Spanish
Record 91 - internal organization data 2001-08-07
Record 91, English
Record 91, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 91, Main entry term, English
- universal gimbal ring system
1, record 91, English, universal%20gimbal%20ring%20system
correct
Record 91, Abbreviations, English
Record 91, Synonyms, English
Record 91, Textual support, English
Record number: 91, Textual support number: 1 CONT
In the attitude indicator, the gyro wheel is mounted horizontally and spins about its vertical axis. It is mounted in a universal gimbal ring system, free about both the pitching and rolling axes of the airplane and is therefore able to remain spinning in a horizontal plane parallel to the true horizon, regardless of the rolling or pitching movements of the airplane around it. 1, record 91, English, - universal%20gimbal%20ring%20system
Record 91, French
Record 91, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 91, Main entry term, French
- système de cardan universel
1, record 91, French, syst%C3%A8me%20de%20cardan%20universel
correct, masculine noun
Record 91, Abbreviations, French
Record 91, Synonyms, French
Record 91, Textual support, French
Record number: 91, Textual support number: 1 CONT
Le rotor de l'horizon artificiel est monté horizontalement et tourne autour de son axe vertical. Il est fixé à un système de cardan universel, libre autour des axes de tangage et de roulis. Il est donc capable de maintenir une rotation sur le plan horizontal, parallèle à l'horizon naturel, indépendamment des mouvements de roulis et de tangage exécutés par l'avion autour de lui. 1, record 91, French, - syst%C3%A8me%20de%20cardan%20universel
Record 91, Spanish
Record 91, Textual support, Spanish
Record 92 - internal organization data 2001-06-21
Record 92, English
Record 92, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 92, Main entry term, English
- single-degree-of-freedom gyroscope
1, record 92, English, single%2Ddegree%2Dof%2Dfreedom%20gyroscope
correct
Record 92, Abbreviations, English
Record 92, Synonyms, English
- single degree of freedom gyro 2, record 92, English, single%20degree%20of%20freedom%20gyro
correct
- single-degree-of-freedom gyro 3, record 92, English, single%2Ddegree%2Dof%2Dfreedom%20gyro
correct
Record 92, Textual support, English
Record number: 92, Textual support number: 1 DEF
A gyro, the spin axis of which is free to rotate about only one of the orthogonal axes, the spin axis not being counted. 3, record 92, English, - single%2Ddegree%2Dof%2Dfreedom%20gyroscope
Record 92, French
Record 92, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 92, Main entry term, French
- gyroscope à un seul degré de liberté
1, record 92, French, gyroscope%20%C3%A0%20un%20seul%20degr%C3%A9%20de%20libert%C3%A9
correct, masculine noun
Record 92, Abbreviations, French
Record 92, Synonyms, French
- gyroscope à un degré de liberté 2, record 92, French, gyroscope%20%C3%A0%20un%20degr%C3%A9%20de%20libert%C3%A9
correct, masculine noun
- gyroscope 1 axe 3, record 92, French, gyroscope%201%20axe
correct, masculine noun
- gyro à un degré de liberté 4, record 92, French, gyro%20%C3%A0%20un%20degr%C3%A9%20de%20libert%C3%A9
correct, masculine noun
- gyro uniaxe 5, record 92, French, gyro%20uniaxe
correct, masculine noun
- gyroscope à un axe sensible 6, record 92, French, gyroscope%20%C3%A0%20un%20axe%20sensible
correct, masculine noun
Record 92, Textual support, French
Record number: 92, Textual support number: 1 CONT
Degrés de liberté. Le carter du gyroscope peut être lié au bâti qui le supporte de deux façons : la liaison est telle qu'elle autorise un mouvement de rotation autour d'un seul axe, le gyroscope est dit à un degré de liberté; la liaison est telle qu'elle autorise deux mouvements de rotation autour de deux axes concourants, le gyroscope est dit à deux degrés de liberté. Le carter peut exécuter une rotation quelconque autour du point de concours des deux axes. 7, record 92, French, - gyroscope%20%C3%A0%20un%20seul%20degr%C3%A9%20de%20libert%C3%A9
Record 92, Spanish
Record 92, Textual support, Spanish
Record 93 - internal organization data 2001-06-21
Record 93, English
Record 93, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 93, Main entry term, English
- torque vector
1, record 93, English, torque%20vector
correct
Record 93, Abbreviations, English
Record 93, Synonyms, English
Record 93, Textual support, English
Record number: 93, Textual support number: 1 DEF
In a gyro, a vector representing the rotary motion applied to change the direction of the rotor axis. The torque vector represents the axis about which the applied force is felt. 2, record 93, English, - torque%20vector
Record number: 93, Textual support number: 1 CONT
As with the angular momentum the torque, or twist, produced by applying a force to a gyroscope, can be represented by a directed line segment--the torque vector. Its direction also can be determined by the "rigth-hand" rule: when the fingers of the right hand are curve to point in the direction of the twist, the thumb points in the same direction as the torque vector. 3, record 93, English, - torque%20vector
Record 93, Key term(s)
- twist vector
Record 93, French
Record 93, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 93, Main entry term, French
- vecteur de couple
1, record 93, French, vecteur%20de%20couple
masculine noun
Record 93, Abbreviations, French
Record 93, Synonyms, French
- vecteur couple 2, record 93, French, vecteur%20couple
masculine noun
Record 93, Textual support, French
Record number: 93, Textual support number: 1 CONT
Avec le contrôle du vecteur de couple, FUJI ELECTRIC fut un des premiers constructeurs à intégrer une régulation du moteur qui permettait un couple élevé et une bonne rotation à bas régime. 1, record 93, French, - vecteur%20de%20couple
Record 93, Spanish
Record 93, Textual support, Spanish
Record 94 - internal organization data 2001-06-21
Record 94, English
Record 94, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Rolling and Suspension Components (Railroad)
Record 94, Main entry term, English
- roll rate gyroscope
1, record 94, English, roll%20rate%20gyroscope
correct
Record 94, Abbreviations, English
Record 94, Synonyms, English
- roll-rate gyro 2, record 94, English, roll%2Drate%20gyro
correct
- roll rate gyro 3, record 94, English, roll%20rate%20gyro
correct
- roll-rate gyroscope 4, record 94, English, roll%2Drate%20gyroscope
correct
Record 94, Textual support, English
Record number: 94, Textual support number: 1 DEF
Gyro that tends to compensate the motion of aircraft [or similar body] with reference to the longitudinal(roll) axis. 5, record 94, English, - roll%20rate%20gyroscope
Record number: 94, Textual support number: 1 CONT
Roll-rate gyro. The roll-rate gyro is less sensitive than the P [pitch] and Y [yaw] rate gyros. Roll-rate control limits fast roll rates during boost, before roll stabilization takes place. This gyro damps the missile’s rolling oscillations about the normal flight position. 2, record 94, English, - roll%20rate%20gyroscope
Record number: 94, Textual support number: 2 CONT
The gyropilot, commonly called an automatic pilot (q.v.), consists basically of three devices, each of which detects disturbances of the aircraft in one plane and corrects for these disturbances by moving the appropriate control ... The roll disturbance is detected by a roll rate gyroscope and by a roll angle pendulum, which senses displacement. 1, record 94, English, - roll%20rate%20gyroscope
Record number: 94, Textual support number: 1 OBS
See record "gyrometer; rate gyro. 6, record 94, English, - roll%20rate%20gyroscope
Record 94, French
Record 94, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
- Roulement et suspension (Chemins de fer)
Record 94, Main entry term, French
- gyromètre de roulis
1, record 94, French, gyrom%C3%A8tre%20de%20roulis
correct, masculine noun
Record 94, Abbreviations, French
Record 94, Synonyms, French
Record 94, Textual support, French
Record number: 94, Textual support number: 1 CONT
Le TGV pendulaire est un train de haute technologie qui offre un agrément de voyage et une vitesse sur rail inégalés à ce jour. [...] L'Unité de Contrôle de Pendulation (UCP) est implantée sur une carte bi-processeurs composée d'un processeur I960 et d'un processeur de traitement de signal TMSC31 cadencé à 32 MHz et possédant 512Ko de mémoire vive. [...] Le TMS est consacré d'une part à l'échantillonnage à 1 KHz des données capteurs provenant de l'accéléromètre et des gyromètres de roulis et de lacet situés sous le bogie de tête, et d'autre part à l'implémentation du module loi de commande à une fréquence de 100 Hz. 2, record 94, French, - gyrom%C3%A8tre%20de%20roulis
Record number: 94, Textual support number: 1 OBS
Voir la fiche «gyromètre». 3, record 94, French, - gyrom%C3%A8tre%20de%20roulis
Record 94, Spanish
Record 94, Textual support, Spanish
Record 95 - internal organization data 2001-06-21
Record 95, English
Record 95, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 95, Main entry term, English
- slaving
1, record 95, English, slaving
correct
Record 95, Abbreviations, English
Record 95, Synonyms, English
Record 95, Textual support, English
Record number: 95, Textual support number: 1 DEF
The use of a torquer to maintain the orientation of the spin axis relative to an external reference, such as a pendulum or magnetic compass. 2, record 95, English, - slaving
Record number: 95, Textual support number: 1 CONT
The free gyro... can be converted to a directional reference by remounting its case with the spin axis horizontal and the indicator axis vertical. The indicator will then give the airplane's heading. Gyro drift is countered by slaving the instrument to the Earth's magnetic field, via either a separate magnetic compass or a flux valve device. 3, record 95, English, - slaving
Record 95, French
Record 95, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 95, Main entry term, French
- asservissement
1, record 95, French, asservissement
correct, masculine noun
Record 95, Abbreviations, French
Record 95, Synonyms, French
Record 95, Textual support, French
Record number: 95, Textual support number: 1 DEF
Action de mettre un mécanisme sous la dépendance d'un organe régulateur qui, actionné par des appareils commandés, réagit sur le circuit de commande en vue d'imposer à l'ensemble certaines conditions. 2, record 95, French, - asservissement
Record number: 95, Textual support number: 1 OBS
Sur les petits appareils comme le Cessna 182RG, le pilote règle le conservateur de cap pour qu'il coïncide avec le compas avant le décollage, et le réajuste périodiquement pendant le vol pour être sûr qu'il reste synchronisé avec le compas. Le conservateur de cap dérive parce qu'il est basé sur un gyroscope, sujet avec le temps à la précession. En règle générale, le conservateur de cap ne doit pas dériver de plus de 3 degrés toutes les 15 minutes. Les appareils plus importants sont équipés de conservateurs de cap asservis qui maintiennent l'instrument correctement aligné avec le compas. 3, record 95, French, - asservissement
Record 95, Spanish
Record 95, Textual support, Spanish
Record 96 - internal organization data 2001-06-21
Record 96, English
Record 96, Subject field(s)
- Lasers and Masers
- Optics
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
Record 96, Main entry term, English
- triangular cavity
1, record 96, English, triangular%20cavity
correct
Record 96, Abbreviations, English
Record 96, Synonyms, English
- triangular resonant cavity 2, record 96, English, triangular%20resonant%20cavity
Record 96, Textual support, English
Record number: 96, Textual support number: 1 CONT
Specialized configurations-a triple XYZ axis triangular cavity laser in a solid glass block for an optical ring laser gyro, for example-also exist but are much much less common-you probably won’t find one of these at a local flea market! 3, record 96, English, - triangular%20cavity
Record 96, French
Record 96, Domaine(s)
- Masers et lasers
- Optique
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
Record 96, Main entry term, French
- cavité triangulaire
1, record 96, French, cavit%C3%A9%20triangulaire
correct, feminine noun
Record 96, Abbreviations, French
Record 96, Synonyms, French
- cavité résonnante triangulaire 2, record 96, French, cavit%C3%A9%20r%C3%A9sonnante%20triangulaire
proposal, feminine noun
Record 96, Textual support, French
Record number: 96, Textual support number: 1 CONT
Mon travail de thèse consiste dans un premier temps à étudier la technique de stabilisation en fréquence du laser sur une cavité triangulaire (stabilisation de l'ordre de 1E-11 lambda par rapport à la cavité de référence), ainsi que l'alignement automatique du laser sur une seconde cavité appelée «mode cleaner» permettant de sélectionner le mode fondamental du faisceau laser gaussien. 1, record 96, French, - cavit%C3%A9%20triangulaire
Record number: 96, Textual support number: 1 OBS
Le gyrolaser est un oscillateur optique dans lequel un laser émet deux ondes progressives indépendantes qui parcourent une cavité résonnante en sens contraire l'une de l'autre. Dans les gyrolasers des centrales Sagem [...] cette cavité a la forme d'un triangle équilatéral et trois électrodes (deux anodes et une cathode) excitent un mélange d'hélium et de néon créant ainsi un milieu amplificateur. Figure 3.82 : gyrolaser à cavité triangulaire [...] Des gyrolasers à cavité carrée ont aussi été développés. 3, record 96, French, - cavit%C3%A9%20triangulaire
Record 96, Key term(s)
- cavité résonante triangulaire
Record 96, Spanish
Record 96, Textual support, Spanish
Record 97 - internal organization data 2001-06-21
Record 97, English
Record 97, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 97, Main entry term, English
- rate-integrating single-axis gyro
1, record 97, English, rate%2Dintegrating%20single%2Daxis%20gyro
correct
Record 97, Abbreviations, English
Record 97, Synonyms, English
Record 97, Textual support, English
Record number: 97, Textual support number: 1 CONT
The nuclear magnetic resonance(NMR) gyroscope is a rate-integrating single axis gyro that obtains its rotational information from the dynamic angular motion of certain nuclei. The gyro was developed because of its potential to be an accurate, small, highly reliable inertial sensor with low acquisition and life cycle costs. 1, record 97, English, - rate%2Dintegrating%20single%2Daxis%20gyro
Record 97, Key term(s)
- rate-integrating single-axis gyroscope
Record 97, French
Record 97, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 97, Main entry term, French
- gyroscope intégrateur 1-axe
1, record 97, French, gyroscope%20int%C3%A9grateur%201%2Daxe
correct, masculine noun
Record 97, Abbreviations, French
Record 97, Synonyms, French
Record 97, Textual support, French
Record number: 97, Textual support number: 1 CONT
Le gyroscope intégrateur 1-axe : Supposons cet appareil dédié à la surveillance d'une plate-forme, ce qui rappelons le signifie des écarts angulaires faibles et des vitesses angulaires encore plus faibles [...] 1, record 97, French, - gyroscope%20int%C3%A9grateur%201%2Daxe
Record 97, Key term(s)
- gyroscope intégrateur un axe
Record 97, Spanish
Record 97, Textual support, Spanish
Record 98 - internal organization data 2001-06-21
Record 98, English
Record 98, Subject field(s)
- Astrophysics and Cosmography
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 98, Main entry term, English
- rate of precession
1, record 98, English, rate%20of%20precession
correct
Record 98, Abbreviations, English
Record 98, Synonyms, English
- precession rate 2, record 98, English, precession%20rate
correct
Record 98, Textual support, English
Record number: 98, Textual support number: 1 CONT
If the weight is increased, the rate of precession is increased. If the weight is decreased, the rate of the precession is decreased and the ellipse will broaden. The period of oscillation for undamped gyro is 113 minutes, and as the spin axis seek the meridian some means is required to suppress this oscillation so that it will come to rest in north direction. 3, record 98, English, - rate%20of%20precession
Record number: 98, Textual support number: 2 CONT
A further use of gyroscopes is found in their employment as stabilizers, as on aircraft and ships, to keep inertial guidance systems steady despite the sometimes violent motions of the vehicles. In such cases the gyroscope is made very large and given a large amount of angular momentum. The rate of precession will then be very small, since the precession is inversely proportional to the angular momentum; this small rate of precession means that the system resists angular displacements. 4, record 98, English, - rate%20of%20precession
Record number: 98, Textual support number: 1 OBS
See record "precessional motion / précession." 5, record 98, English, - rate%20of%20precession
Record 98, French
Record 98, Domaine(s)
- Astrophysique et cosmographie
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 98, Main entry term, French
- taux de précession
1, record 98, French, taux%20de%20pr%C3%A9cession
correct, masculine noun
Record 98, Abbreviations, French
Record 98, Synonyms, French
Record 98, Textual support, French
Record number: 98, Textual support number: 1 CONT
Le Groupe de Travail sur la Théorie de la Nutation d'une Terre non-rigide a quantifié les problèmes dans la série de nutations adoptée par l'UAI en 1980 en notant : (1) qu'il y a une différence dans le taux de précession d'environ -3.0 millisecondes de degré par an (mas/an) entre la valeur observée par interférométrie à très longue base (VLBI) et par Tirs au Laser sur la Lune (LLR) et la valeur adoptée [...] 2, record 98, French, - taux%20de%20pr%C3%A9cession
Record number: 98, Textual support number: 1 OBS
L'usage fait donner des appellations différentes à cette composante de rotation instantanée [...] : lorsqu'elle est due à un phénomène déterministe et connu, on l'appelle précession gyroscopique; lorsqu'elle est due à un phénomène aléatoire, ou bien que l'on ne maîtrise pas, on l'appelle dérive gyroscopique. 3, record 98, French, - taux%20de%20pr%C3%A9cession
Record number: 98, Textual support number: 2 OBS
Voir la fiche «précession / precessional motion». 4, record 98, French, - taux%20de%20pr%C3%A9cession
Record 98, Spanish
Record 98, Textual support, Spanish
Record 99 - internal organization data 2001-06-21
Record 99, English
Record 99, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 99, Main entry term, English
- single gimbal ring
1, record 99, English, single%20gimbal%20ring
correct
Record 99, Abbreviations, English
Record 99, Synonyms, English
Record 99, Textual support, English
Record number: 99, Textual support number: 1 CONT
One simple form of gyrocompass consists of a single gimbal ring attached to a support rod that is an extension of a diameter of the ring. The axis of the spinning wheel is mounted inside the ring along a diameter that is at right angles to the one represented by the support rod. 2, record 99, English, - single%20gimbal%20ring
Record number: 99, Textual support number: 2 CONT
rate gyroscope : A gyro wheel mounted in a single gimbal ring in such a manner that rotation about an axis perpendicular to both the gimbal axis and gyro axis produces a precessional torque proportional to the rotation rate. 3, record 99, English, - single%20gimbal%20ring
Record number: 99, Textual support number: 1 OBS
See record "gimbal ring / anneau de cardan." 4, record 99, English, - single%20gimbal%20ring
Record 99, Key term(s)
- single-gimbal ring
Record 99, French
Record 99, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 99, Main entry term, French
- anneau de cardan simple
1, record 99, French, anneau%20de%20cardan%20simple
masculine noun
Record 99, Abbreviations, French
Record 99, Synonyms, French
Record 99, Textual support, French
Record number: 99, Textual support number: 1 OBS
Voir la fiche «anneau de cardan / gimbal ring». 1, record 99, French, - anneau%20de%20cardan%20simple
Record 99, Spanish
Record 99, Textual support, Spanish
Record 100 - internal organization data 2001-06-21
Record 100, English
Record 100, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 100, Main entry term, English
- slaved
1, record 100, English, slaved
correct
Record 100, Abbreviations, English
Record 100, Synonyms, English
- slave 2, record 100, English, slave
correct, adjective, officially approved
Record 100, Textual support, English
Record number: 100, Textual support number: 1 CONT
A free gyro that is not slaved to any Earth reference(as the vertical and directional gyros and the gyrocompass are) will tend to maintain a fixed direction in inertial space, that is, with respect to fixed stars. Then as the Earth rotates, the angle between the axis of such a gyro and an arbitrary line on the Earth will change, and to an Earth-fixed observer the gyro will appear to precess. 3, record 100, English, - slaved
Record number: 100, Textual support number: 2 CONT
The Rover navigation system uses a directional gyro to keep track of the Rover heading... and rotation counts on the four wheels to determine distance driven, range back to the LM [lunar module], and bearing to the LM.(Jones-"I had thought, originally, that the Nav system used inertial... ")(Irwin-"When you say inertial, you normally think of inertial as three-axis inertial. Here, you’ve only got a slave gyro and one axis for heading. ")(Jones-"A single-axis gyro. ") 4, record 100, English, - slaved
Record number: 100, Textual support number: 1 OBS
slave: term officialized by the Aeronautical Terminology Standardization Committee (ATSC) - Helicopters. 5, record 100, English, - slaved
Record 100, French
Record 100, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 100, Main entry term, French
- asservi
1, record 100, French, asservi
correct, officially approved
Record 100, Abbreviations, French
Record 100, Synonyms, French
Record 100, Textual support, French
Record number: 100, Textual support number: 1 CONT
L'Horizon artificiel. Il mesure simultanément une assiette et une inclinaison. L'utilisation d'un gyroscope asservi à la verticale lui permet de mesurer les angles compris entre l'axe du gyroscope et les axes liés à l'avion. On obtient ainsi les sens en degrés d'inclinaison ainsi que la valeur de l'angle d'attitude à cabrer ou à piquer. 2, record 100, French, - asservi
Record number: 100, Textual support number: 2 CONT
Gyroscope asservi. 3, record 100, French, - asservi
Record number: 100, Textual support number: 1 OBS
asservi : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Hélicoptères. 4, record 100, French, - asservi
Record 100, Spanish
Record 100, Textual support, Spanish
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