TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
GYROSCOPE AXE VERTICAL [12 records]
Record 1 - internal organization data 2010-12-02
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
- azimuth gyroscope
1, record 1, English, azimuth%20gyroscope
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- azimuth gyro 2, record 1, English, azimuth%20gyro
correct
Record 1, Textual support, English
Record number: 1, 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 1, English, - azimuth%20gyroscope
Record number: 1, 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 1, English, - azimuth%20gyroscope
Record number: 1, Textual support number: 3 CONT
azimuth gyro: term used at Natural Resources Canada - Earth Sciences Sector. 4, record 1, English, - azimuth%20gyroscope
Record number: 1, Textual support number: 1 PHR
Azimuth gyro drift rate. 5, record 1, English, - azimuth%20gyroscope
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
- gyroscope d’azimut
1, record 1, French, gyroscope%20d%26rsquo%3Bazimut
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- gyro d’azimut 2, record 1, French, gyro%20d%26rsquo%3Bazimut
correct, masculine noun
Record 1, Textual support, French
Record number: 1, 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 1, French, - gyroscope%20d%26rsquo%3Bazimut
Record number: 1, Textual support number: 1 OBS
gyroscope d’azimut : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 4, record 1, French, - gyroscope%20d%26rsquo%3Bazimut
Record number: 1, Textual support number: 1 PHR
Vitesse de dérive du gyroscope d’azimut. 5, record 1, French, - gyroscope%20d%26rsquo%3Bazimut
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2009-01-14
Record 2, English
Record 2, Subject field(s)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Ship Piloting
- Launching and Space Maneuvering
Record 2, Main entry term, English
- north-slaved system
1, record 2, English, north%2Dslaved%20system
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
As the aircraft approaches the poles (90°), cos [phi] approaches zero, so that the computation of longitude leads to a singularity. Consequently, a physical limitation arise in the computation of the azimuth gyroscope torquing command. That is, the rate at which the inertial platform must be rotated about the vertical axis in order to maintain one of its level axes pointing north (this is the so-called "north-slaved" system; ... 1, record 2, English, - north%2Dslaved%20system
Record number: 2, Textual support number: 1 OBS
north-slaved: Designation for systems which physically track the direction of north by rotating the platform. 2, record 2, English, - north%2Dslaved%20system
Record 2, Key term(s)
- north slaved system
Record 2, French
Record 2, Domaine(s)
- Pilotage et navigation aérienne
- Instruments de navigation
- Pilotage des navires
- Lancement et manœuvres dans l'espace
Record 2, Main entry term, French
- système chercheur de nord
1, record 2, French, syst%C3%A8me%20chercheur%20de%20nord
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
Le gyroscope «1 axe» à suspension hydrostatique [...] Exemple d’application : le chercheur de nord Teldix NSK 40. Il s’agit essentiellement d’un gyroscope GWK 281 équipé d’un rappel élastique le transformant en gyromètre, dont le boîtier est suspendu au cardan de manière à pouvoir : obtenir l'alignement de son axe de sortie avec la verticale locale, par effet pendulaire; subir une rotation quelconque autour d’un axe d’azimut, sensiblement vertical, lié au boîtier de l'ensemble. La recherche du nord est effectuée par un asservissement dont l'élément détecteur est le gyromètre(axe d’entrée E), et dont le moteur agit sur sa suspension, de manière à faire balayer le plan horizontal par E. 2, record 2, French, - syst%C3%A8me%20chercheur%20de%20nord
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2009-01-14
Record 3, English
Record 3, Subject field(s)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Ship Piloting
- Spacecraft
Record 3, Main entry term, English
- north-slaved directional gyro
1, record 3, English, north%2Dslaved%20directional%20gyro
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
A gyrocompass must not be confused with a directional gyro. The latter is a gyroscope which is slaved to a magnetic compass and is not itself a north-seeker. Most conventional aircraft are equipped with north-slaved directional gyros. 1, record 3, English, - north%2Dslaved%20directional%20gyro
Record number: 3, Textual support number: 1 OBS
north-slaved: Designation for systems which physically track the direction of north by rotating the platform. 2, record 3, English, - north%2Dslaved%20directional%20gyro
Record 3, Key term(s)
- north-slaved directional gyroscope
- north slaved directional gyroscope
- north slaved directional gyro
Record 3, French
Record 3, Domaine(s)
- Pilotage et navigation aérienne
- Instruments de navigation
- Pilotage des navires
- Engins spatiaux
Record 3, Main entry term, French
- gyroscope directionnel chercheur de nord
1, record 3, French, gyroscope%20directionnel%20chercheur%20de%20nord
masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
Le gyroscope «1 axe» à suspension hydrostatique [...] Exemple d’application : le chercheur de nord Teldix NSK 40. Il s’agit essentiellement d’un gyroscope GWK 281 équipé d’un rappel élastique le transformant en gyromètre, dont le boîtier est suspendu au cardan de manière à pouvoir : obtenir l'alignement de son axe de sortie avec la verticale locale, par effet pendulaire; subir une rotation quelconque autour d’un axe d’azimut, sensiblement vertical, lié au boîtier de l'ensemble. La recherche du nord est effectuée par un asservissement dont l'élément détecteur est le gyromètre(axe d’entrée E), et dont le moteur agit sur sa suspension, de manière à faire balayer le plan horizontal par E. 2, record 3, French, - gyroscope%20directionnel%20chercheur%20de%20nord
Record 3, Key term(s)
- gyro directionnel chercheur de nord
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2007-02-05
Record 4, English
Record 4, Subject field(s)
- Spacecraft
- Applications of Electronics
- Aircraft Piloting and Navigation
Record 4, Main entry term, English
- horizon sensor
1, record 4, English, horizon%20sensor
correct, officially approved
Record 4, Abbreviations, English
Record 4, Synonyms, English
- infrared horizon sensor 2, record 4, English, infrared%20horizon%20sensor
correct
- infra-red horizon sensor 3, record 4, English, infra%2Dred%20horizon%20sensor
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A radiometer or other sensor that is used to align or control the axis of a spacecraft, missile, or satellite with the apparent horizon of the Earth or of any other astronomical body. 4, record 4, English, - horizon%20sensor
Record number: 4, Textual support number: 1 CONT
Horizon sensors [are] the primary means for directly determining the attitude of a spacecraft relative to the Earth ... The attitude of spacecraft relative to Earth is one of the most important aspects of attitude determination and control, particularly for communications (TDRSS), weather (GOES), Earth resources (LANDSAT), satellites, etc. Earth cannot be treated as a point source like the Sun, especially for near Earth satellites for which Earth covers about 40% of the sky. Therefore, merely detecting the Earth is by no means sufficient for attitude determination, even for the most crude attitude determination requirements. Hence most sensors are designed to detect the Earth's horizon. Horizon sensors are infrared devices that detect the contrast of the cold of space and the warmth of the Earth (or other body). 5, record 4, English, - horizon%20sensor
Record number: 4, Textual support number: 2 CONT
Typically there are four basic components in a horizon sensor: a scanning mechanism, optical system, radiance detector, and signal processing electronics. 5, record 4, English, - horizon%20sensor
Record number: 4, Textual support number: 1 OBS
horizon sensor: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 6, record 4, English, - horizon%20sensor
Record 4, Key term(s)
- infra red horizon sensor
Record 4, French
Record 4, Domaine(s)
- Engins spatiaux
- Applications de l'électronique
- Pilotage et navigation aérienne
Record 4, Main entry term, French
- capteur d’horizon
1, record 4, French, capteur%20d%26rsquo%3Bhorizon
correct, masculine noun, officially approved
Record 4, Abbreviations, French
Record 4, Synonyms, French
- détecteur d’horizon 2, record 4, French, d%C3%A9tecteur%20d%26rsquo%3Bhorizon
correct, masculine noun
- détecteur d’horizon infrarouge 3, record 4, French, d%C3%A9tecteur%20d%26rsquo%3Bhorizon%20infrarouge
correct, masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Scanneur mécanique à détecteurs électro-optiques montés de façon à repérer l’horizon terrestre. 4, record 4, French, - capteur%20d%26rsquo%3Bhorizon
Record number: 4, 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 ce qui crée un couple vertical ramenant le moment cinétique horizontal. 5, record 4, French, - capteur%20d%26rsquo%3Bhorizon
Record number: 4, Textual support number: 2 CONT
[...] un système de contrôle d’attitude et d’orbite qui comprend : [...] un capteur optique 2-axes qui peut détecter soit la Terre (typiquement capteur d’horizon Infra-Rouge) soit l’Étoile Polaire (typiquement capteur à matrice CCD). 6, record 4, French, - capteur%20d%26rsquo%3Bhorizon
Record number: 4, Textual support number: 1 OBS
capteur d’horizon : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 7, record 4, French, - capteur%20d%26rsquo%3Bhorizon
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2006-03-06
Record 5, English
Record 5, Subject field(s)
- Navigation Instruments
- Aircraft Piloting and Navigation
- Ship Piloting
Record 5, Main entry term, English
- north-slaved platform
1, record 5, English, north%2Dslaved%20platform
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
... inertial platform control implies the continuous orientation of the gimbal system (cluster) to some predetermined reference frame, after an initial alignment. Platform heading can be maintained through signals to the gyroscope torquers originating in the navigation computer. For example, in a north-slaved platform, the gimbal cluster must be rotated in azimuth. 1, record 5, English, - north%2Dslaved%20platform
Record number: 5, Textual support number: 1 OBS
north-slaved: Designation for systems which physically track the direction of north by rotating the platform. 2, record 5, English, - north%2Dslaved%20platform
Record 5, Key term(s)
- north slaved platform
Record 5, French
Record 5, Domaine(s)
- Instruments de navigation
- Pilotage et navigation aérienne
- Pilotage des navires
Record 5, Main entry term, French
- plateforme chercheuse de nord
1, record 5, French, plateforme%20chercheuse%20de%20nord
feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 OBS
Le gyroscope «1 axe» à suspension hydrostatique [...] Exemple d’application : le chercheur de nord Teldix NSK 40. Il s’agit essentiellement d’un gyroscope GWK 281 équipé d’un rappel élastique le transformant en gyromètre, dont le boîtier est suspendu au cardan de manière à pouvoir : obtenir l'alignement de son axe de sortie avec la verticale locale, par effet pendulaire; subir une rotation quelconque autour d’un axe d’azimut, sensiblement vertical, lié au boîtier de l'ensemble. La recherche du nord est effectuée par un asservissement dont l'élément détecteur est le gyromètre(axe d’entrée E), et dont le moteur agit sur sa suspension, de manière à faire balayer le plan horizontal par E. 2, record 5, French, - plateforme%20chercheuse%20de%20nord
Record number: 5, Textual support number: 2 OBS
Pluriel : des plateformes, des plates-formes. 3, record 5, French, - plateforme%20chercheuse%20de%20nord
Record number: 5, Textual support number: 3 OBS
plateforme (sing.); plateformes (pl.) : Ces graphies, puisées des Rectifications de l’orthographe recommandées par le Conseil supérieur de la langue française, sont attestées dans le Petit Robert (2004). 4, record 5, French, - plateforme%20chercheuse%20de%20nord
Record 5, Key term(s)
- plate-forme chercheuse de nord
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2001-08-30
Record 6, English
Record 6, Subject field(s)
- Couplings (Mechanical Components)
- Aeroindustry
- Navigation Instruments
Record 6, Main entry term, English
- gimbaled
1, record 6, English, gimbaled
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- gimballed 2, record 6, English, gimballed
correct
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
Provided with or supported on gimbals. 3, record 6, English, - gimbaled
Record number: 6, 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 6, English, - gimbaled
Record number: 6, Textual support number: 1 OBS
gimbal: In a gyro, a support which provides the spin axis with a degree of freedom. 4, record 6, English, - gimbaled
Record 6, French
Record 6, Domaine(s)
- Accouplements (Composants mécaniques)
- Constructions aéronautiques
- Instruments de navigation
Record 6, Main entry term, French
- monté à la Cardan
1, record 6, French, mont%C3%A9%20%C3%A0%20la%20Cardan
correct
Record 6, Abbreviations, French
Record 6, Synonyms, French
- suspendu à la Cardan 2, record 6, French, suspendu%20%C3%A0%20la%20Cardan
correct
- à anneaux de cardan 3, record 6, French, %C3%A0%20anneaux%20de%20cardan
- monté sur cardan 4, record 6, French, mont%C3%A9%20sur%20cardan
Record 6, Textual support, French
Record number: 6, 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 6, French, - mont%C3%A9%20%C3%A0%20la%20Cardan
Record number: 6, Textual support number: 1 OBS
cardan : Articulation permettant l’accouplement de deux arbres à axes concourants. 5, record 6, French, - mont%C3%A9%20%C3%A0%20la%20Cardan
Record number: 6, 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 6, French, - mont%C3%A9%20%C3%A0%20la%20Cardan
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2001-08-30
Record 7, English
Record 7, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Launching and Space Maneuvering
Record 7, Main entry term, English
- unbalanced
1, record 7, English, unbalanced
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- unsymmetrical 2, record 7, English, unsymmetrical
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
The vacuum-drive heading indicator is the simplest of many types of gyro-controlled directional indicators designed to provide stable heading reference. ... Errors. The chief cause of precession, causing the card to creep or drift, is bearing friction. Normal movement of the gimbal rings produces friction, which is increased if the bearings are worn, dirty, or improperly lubricated. Other sources of precession error include unbalanced gyro components and the effect of the earth's rotation. The latter effect depends upon the position of the instrument in relation to the earth, and is not appreciable unless a flight involves considerable change in latitude. 1, record 7, English, - unbalanced
Record number: 7, Textual support number: 2 CONT
Unsymmetrical gyroscope. 2, record 7, English, - unbalanced
Record number: 7, Textual support number: 1 OBS
mass unbalance: The characteristic of a gyro resulting from lack of coincidence of the center of supporting forces and the center of mass. It gives rise to torques caused by linear accelerations that lead to acceleration-sensitive drift rates. 2, record 7, English, - unbalanced
Record 7, French
Record 7, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
- Lancement et manœuvres dans l'espace
Record 7, Main entry term, French
- balourdé
1, record 7, French, balourd%C3%A9
correct
Record 7, Abbreviations, French
Record 7, Synonyms, French
- dyssymétrique 2, record 7, French, dyssym%C3%A9trique
Record 7, Textual support, French
Record number: 7, 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. 3, record 7, French, - balourd%C3%A9
Record number: 7, Textual support number: 2 CONT
Gyroscope balourdé. 4, record 7, French, - balourd%C3%A9
Record number: 7, 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. 5, record 7, French, - balourd%C3%A9
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2001-08-30
Record 8, English
Record 8, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 8, Main entry term, English
- kinetic moment
1, record 8, English, kinetic%20moment
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, 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 8, English, - kinetic%20moment
Record 8, French
Record 8, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 8, Main entry term, French
- moment cinétique
1, record 8, French, moment%20cin%C3%A9tique
correct, masculine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
- moment cinétique du gyroscope 1, record 8, French, moment%20cin%C3%A9tique%20du%20gyroscope
correct, masculine noun
- moment cinétique gyro 2, record 8, French, moment%20cin%C3%A9tique%20gyro
correct, masculine noun
- moment cinétique du gyro 3, record 8, French, moment%20cin%C3%A9tique%20du%20gyro
correct, masculine noun
Record 8, Textual support, French
Record number: 8, 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 8, French, - moment%20cin%C3%A9tique
Record number: 8, 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 8, French, - moment%20cin%C3%A9tique
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2001-08-13
Record 9, English
Record 9, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 9, Main entry term, English
- pitch vertical alignment
1, record 9, English, pitch%20vertical%20alignment
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
Record 9, Textual support, English
Record number: 9, 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 9, English, - pitch%20vertical%20alignment
Record 9, French
Record 9, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 9, Main entry term, French
- alignement vertical de tangage
1, record 9, French, alignement%20vertical%20de%20tangage
masculine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, 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 9, French, - alignement%20vertical%20de%20tangage
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2001-06-21
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 gimbal ring
1, record 10, English, vertical%20gimbal%20ring
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
- vertical gimbal 2, record 10, English, vertical%20gimbal
correct
Record 10, Textual support, English
Record number: 10, Textual support number: 1 CONT
The directional gyroscope forms a standard reference for the pilot and navigator. It is a three-frame gyroscope with its spin axis in the horizontal plane. As soon as tilt develops, a switch is closed between the gyroscope housing and the vertical gimbal ring and a motor introduces a torque in the horizontal plane that causes the gyroscope to precess back toward the horizontal. 3, record 10, English, - vertical%20gimbal%20ring
Record number: 10, Textual support number: 2 CONT
The source of power for the gyro is the engine-driven vacuum pump (or venturi) which sucks air from the rear of the instrument case. This causes air under atmospheric pressure to pass through the filtering system, thence through an air bearing into the hollow vertical gimbal ring. The air then passes through the air nozzle and jets, striking the rotor at a point just above the plane of the horizontal gimbal. 4, record 10, English, - vertical%20gimbal%20ring
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
- anneau vertical
1, record 10, French, anneau%20vertical
correct, masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
- anneau de cardan vertical 2, record 10, French, anneau%20de%20cardan%20vertical
masculine noun
- anneau de suspension vertical 2, record 10, French, anneau%20de%20suspension%20vertical
masculine noun
Record 10, Textual support, French
Record number: 10, Textual support number: 1 CONT
Le gyroscope de Foucault est une toupie rectifiée avec grande précision, formée d’une masse de cuivre de forme torique ou ellipsoïde, montée sur un axe dont les deux extrémités sont fixées sur un anneau lui-même suspendu aux deux extrémités du diamètre perpendiculaire à celui de l'axe qui porte la masse de cuivre, de sorte que celle-ci peut prendre toutes les inclinaisons possibles sur l'horizon. Les deux pivots de ce premier anneau reposent sur un deuxième anneau plus grand, monté lui-même sur pivots lui permettant une rotation verticale. [...] Si on fixe horizontalement l'anneau intérieur, l'axe de rotation ne pourra plus se déplacer que dans un plan horizontal. L'expérience et la théorie indiquent que la masse exécute une série d’oscillations autour de la méridienne, sur laquelle il vient finalement se fixer quand les frottements ont absorbé ce mouvement oscillatoire, pourvu toutefois que la rotation de la toupie dure assez longtemps. Si, au contraire, on fixe l'anneau vertical dans un plan perpendiculaire au plan méridien, l'axe de rotation ne pourra plus se déplacer que dans ce plan méridien. 1, record 10, French, - anneau%20vertical
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2001-06-21
Record 11, English
Record 11, Subject field(s)
- Aircraft Piloting and Navigation
- Ship Piloting
- Launching and Space Maneuvering
Record 11, Main entry term, English
- north-seeking gyroscope
1, record 11, English, north%2Dseeking%20gyroscope
correct
Record 11, Abbreviations, English
- NSG 2, record 11, English, NSG
correct
Record 11, Synonyms, English
- north-seeking gyro 3, record 11, English, north%2Dseeking%20gyro
correct
- north-seeker 4, record 11, English, north%2Dseeker
correct
- north-seeking form of gyroscope 4, record 11, English, north%2Dseeking%20form%20of%20gyroscope
Record 11, Textual support, English
Record number: 11, Textual support number: 1 DEF
A vehicular-mounted gyroscope capable of determining true north. 5, record 11, English, - north%2Dseeking%20gyroscope
Record number: 11, Textual support number: 1 CONT
Generically, gyros fall into two broad classes. They will either maintain a known direction by resisting acceleration present when turning, such as the type of gyrocompass often found in airplanes, or they actually indicate the orbital axis of the earth providing a reference of geographic or "True" north, such as a north-seeking gyro in a ship. 6, record 11, English, - north%2Dseeking%20gyroscope
Record 11, French
Record 11, Domaine(s)
- Pilotage et navigation aérienne
- Pilotage des navires
- Lancement et manœuvres dans l'espace
Record 11, Main entry term, French
- chercheur de nord
1, record 11, French, chercheur%20de%20nord
correct, masculine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
- gyroscope chercheur de nord 2, record 11, French, gyroscope%20chercheur%20de%20nord
masculine noun
Record 11, Textual support, French
Record number: 11, Textual support number: 1 CONT
Le gyroscope «1 axe» à suspension hydrostatique [...] Exemple d’application : le chercheur de nord Teldix NSK 40. Il s’agit essentiellement d’un gyroscope GWK 281 équipé d’un rappel élastique le transformant en gyromètre, dont le boîtier est suspendu au cardan de manière à pouvoir : obtenir l'alignement de son axe de sortie avec la verticale locale, par effet pendulaire; subir une rotation quelconque autour d’un axe d’azimut, sensiblement vertical, lié au boîtier de l'ensemble. La recherche du nord est effectuée par un asservissement dont l'élément détecteur est le gyromètre(axe d’entrée E), et dont le moteur agit sur sa suspension, de manière à faire balayer le plan horizontal par E. 3, record 11, French, - chercheur%20de%20nord
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 1975-03-11
Record 12, English
Record 12, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
Record 12, Main entry term, English
- spinning gyro 1, record 12, English, spinning%20gyro
Record 12, Abbreviations, English
Record 12, Synonyms, English
Record 12, Textual support, English
Record number: 12, Textual support number: 1 OBS
E.the -- establishes a base in the instrument that remains level with the horizon. 1, record 12, English, - spinning%20gyro
Record 12, French
Record 12, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
Record 12, Main entry term, French
- gyroscope à axe vertical 1, record 12, French, gyroscope%20%C3%A0%20axe%20vertical
Record 12, Abbreviations, French
Record 12, Synonyms, French
Record 12, Textual support, French
Record number: 12, Textual support number: 1 OBS
E.la référence d’horizon est obtenue par l’utilisation du --. 1, record 12, French, - gyroscope%20%C3%A0%20axe%20vertical
Record 12, Spanish
Record 12, Textual support, Spanish
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