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GYRO ROTOR [41 records]
Record 1 - internal organization data 2021-12-06
Record 1, English
Record 1, Subject field(s)
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
Record 1, Main entry term, English
- run-down time
1, record 1, English, run%2Ddown%20time
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- coast time 2, record 1, English, coast%20time
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The time interval required for the gyro rotor to reach a specified speed, or during which the gyro exhibits specified performance, after removal of rotor excitation. 2, record 1, English, - run%2Ddown%20time
Record 1, French
Record 1, Domaine(s)
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
Record 1, Main entry term, French
- temps d'arrêt
1, record 1, French, temps%20d%27arr%C3%AAt
masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Pilotaje y navegación aérea
- Instrumentos y equipo de vuelo (Industria aeronáutica)
Record 1, Main entry term, Spanish
- tiempo de detención
1, record 1, Spanish, tiempo%20de%20detenci%C3%B3n
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 CONT
Para acortar el tiempo de detención, el estator se conecta a tres grandes resistores de frenado de 0.6 ohmios conectados en Y. 1, record 1, Spanish, - tiempo%20de%20detenci%C3%B3n
Record 2 - internal organization data 2017-01-18
Record 2, English
Record 2, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 2, Main entry term, English
- suspension
1, record 2, English, suspension
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A means of supporting and positioning a float(floated gyro), rotor(dynamically tuned gyro, electrically suspended gyro), or proof mass(accelerometer) with respect to the case. 2, record 2, English, - suspension
Record number: 2, Textual support number: 1 CONT
A gyroscope may be given one, two or three degrees of freedom, according to the mode of suspension. 3, record 2, English, - suspension
Record 2, French
Record 2, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 2, Main entry term, French
- suspension
1, record 2, French, suspension
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- suspension de l'élément sensible 2, record 2, French, suspension%20de%20l%27%C3%A9l%C3%A9ment%20sensible
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
En pratique, le gyroscope est formé par un disque installé dans une monture à cardan qui permet la liberté de mouvement dans toutes les directions. Si le gyroscope est bien équilibré, c'est-à-dire si son centre de masse est exactement au centre de la suspension, son axe de rotation conservera sa direction par rapport aux étoiles fixes. 3, record 2, French, - suspension
Record number: 2, Textual support number: 2 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.). 2, record 2, French, - suspension
Record number: 2, Textual support number: 3 CONT
La SAGEM est notamment spécialisée dans les gyromètres, gyroscopes flottants, gyroscopes accordés, gyroscopes à suspension électrostatique (GSE), gyroscopes lasers, à fibres optiques, vibrants. 4, record 2, French, - suspension
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2003-11-21
Record 3, English
Record 3, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 3, Main entry term, English
- spin axis
1, record 3, English, spin%20axis
correct
Record 3, Abbreviations, English
- SA 2, record 3, English, SA
correct
Record 3, Synonyms, English
- rotation axis 3, record 3, English, rotation%20axis
correct
- spin axle 4, record 3, English, spin%20axle
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The axis of rotation of the [gyro] rotor. 2, record 3, English, - spin%20axis
Record number: 3, 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 3, English, - spin%20axis
Record number: 3, 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 3, English, - spin%20axis
Record 3, French
Record 3, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 3, Main entry term, French
- axe de spin
1, record 3, French, axe%20de%20spin
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- axe de rotation de la toupie 2, record 3, French, axe%20de%20rotation%20de%20la%20toupie
correct, masculine noun
- axe de révolution 3, record 3, French, axe%20de%20r%C3%A9volution
correct, masculine noun
- axe de rotation 4, record 3, French, axe%20de%20rotation
correct, masculine noun
Record 3, Textual support, French
Record number: 3, 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 3, French, - axe%20de%20spin
Record number: 3, 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 3, French, - axe%20de%20spin
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Mecánica general (Física)
- Pilotaje y navegación aérea
- Instrumentos de navegación
- Instrumentos y equipo de vuelo (Industria aeronáutica)
Record 3, Main entry term, Spanish
- eje de rotación
1, record 3, Spanish, eje%20de%20rotaci%C3%B3n
correct, masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2002-10-22
Record 4, English
Record 4, Subject field(s)
- Measuring Instruments (Engineering)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 4, Main entry term, English
- free gyro
1, record 4, English, free%20gyro
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- free gyroscope 2, record 4, English, free%20gyroscope
correct
- unrestrained gyroscope 3, record 4, English, unrestrained%20gyroscope
correct
- free mounted gyroscope 4, record 4, English, free%20mounted%20gyroscope
correct
- freely mounted gyroscope 5, record 4, English, freely%20mounted%20gyroscope
correct
- Cardan-mounted gyroscope 6, record 4, English, Cardan%2Dmounted%20gyroscope
correct
- neutral gyro 7, record 4, English, neutral%20gyro
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A gyroscope that uses the property of gyroscopic rigidity to sense changes in altitude of a machine, such as an airplane; the spinning wheel or rotor is isolated from the airplane by gimbals; when the plane changes from level flight, the gyro remains vertical and gives the pilot an artificial horizon reference. 8, record 4, English, - free%20gyro
Record number: 4, Textual support number: 1 CONT
A free (unrestrained and not subject to any outside force) gyroscope is fixed to space... This means the centerline of the axle points to two points of absolute rest, 180 degrees apart, to the Universe or in the up and down direction. 3, record 4, English, - free%20gyro
Record number: 4, Textual support number: 1 OBS
... in order to be free of gravity, gyroscopes can be placed in a Cardan mount, which permits the gyroscopes to remain free of forces exerted on the systems of which they are a part. In the Cardan mount the shaft of a gyroscope wheel is mounted in a gimbal ring, which in turn is mounted in a larger gimbal ring along a diameter that is at right angles to the axis of the wheel. 6, record 4, English, - free%20gyro
Record 4, Key term(s)
- unrestrained gyro
- free-mounted gyro
- free-mounted gyroscope
- neutral gyroscope
- Cardan-mounted gyro
- freely mounted gyro
Record 4, French
Record 4, Domaine(s)
- Instruments de mesure (Ingénierie)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 4, Main entry term, French
- gyroscope libre
1, record 4, French, gyroscope%20libre
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- gyroscope monté à la Cardan 2, record 4, French, gyroscope%20mont%C3%A9%20%C3%A0%20la%20Cardan
correct, masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Gyroscope dont la suspension à la cardan est exempte de toute liaison. 3, record 4, French, - gyroscope%20libre
Record number: 4, 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. 4, record 4, French, - gyroscope%20libre
Record number: 4, Textual support number: 1 OBS
Cardan : Système de suspension dans lequel le corps suspendu conserve une position invariable malgré les oscillations de son support. 5, record 4, French, - gyroscope%20libre
Record number: 4, Textual support number: 2 OBS
Cardan : Nom francisé du savant italien Cardano, 1501-1576. 5, record 4, French, - gyroscope%20libre
Record 4, Key term(s)
- gyro libre
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2002-08-26
Record 5, English
Record 5, Subject field(s)
- Permanent Magnets
- Electromagnetism
- Navigation Instruments
Record 5, Main entry term, English
- permanent magnet torquer
1, record 5, English, permanent%20magnet%20torquer
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- PM torquer 2, record 5, English, PM%20torquer
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
K. R. Rajagopal, "Design and Development of a Permanent Magnet Torquer for a Gyroscope", IEEE Transactions on "Magnetics", Vol. 37, No. 4, July 2001, pp. 2630-2633. 1, record 5, English, - permanent%20magnet%20torquer
Record number: 5, Textual support number: 1 OBS
permanent magnet: A piece of hardened steel or other magnetic material that has been strongly magnetized and retains its magnetism indefinitely. Abbreviated PM. 3, record 5, English, - permanent%20magnet%20torquer
Record number: 5, Textual support number: 2 OBS
torquer(or forcer) : A device that exerts a torque(or force) on a gimbal, a gyro rotor, or a proof mass, in response to a command signal. 4, record 5, English, - permanent%20magnet%20torquer
Record 5, Key term(s)
- PM torquer
Record 5, French
Record 5, Domaine(s)
- Aimants permanents
- Électromagnétisme
- Instruments de navigation
Record 5, Main entry term, French
- moteur-couple à aimant permanent
1, record 5, French, moteur%2Dcouple%20%C3%A0%20aimant%20permanent
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
[...] gyromètre [...] Le rappel élastique peut être obtenu par voie mécanique ou électrique. Les dispositifs de rappel mécanique sont soumis aux contraintes technologiques suivantes : non-linéarités (notamment hystérésis), limitant la précision de l'appareil, et fragilité, limitant la réduction du domaine de mesure (le domaine de mesure des gyromètres à rappel mécanique descend difficilement au-dessous de 20 degrés/s). Le rappel par asservissement électronique permet de se libérer de ces contraintes. [...] La précision obtenue est alors fonction de la qualité du moteur-couple à aimant permanent, et de la liaison entre boîtier et carter. Le remplacement du rappel mécanique par le rappel électrique permet [...] de passer de la classe 10-2 ou 10-3 [...] à la classe 10-4 et d'étendre les domaines de mesure, vers le bas, jusqu'à l'ordre de quelques degrés par heure. 1, record 5, French, - moteur%2Dcouple%20%C3%A0%20aimant%20permanent
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2002-07-16
Record 6, English
Record 6, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
Record 6, Main entry term, English
- synchronization time
1, record 6, English, synchronization%20time
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
The time interval required for the gyro rotor to reach synchronous speed from standstill. 1, record 6, English, - synchronization%20time
Record 6, French
Record 6, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
Record 6, Main entry term, French
- temps de mise en synchronisme
1, record 6, French, temps%20de%20mise%20en%20synchronisme
proposal, masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
- temps de mise en synchronisation 1, record 6, French, temps%20de%20mise%20en%20synchronisation
proposal, masculine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 OBS
Dispositif de mise en synchronisme. Lorsqu'un alternateur synchrone démarre, il importe que sa production soit en phase avec le réseau du distributeur avant sa mise en parallèle avec ce dernier. Dans le cas contraire, on risque, en raccordant le cogénérateur sur le réseau, de réaliser une parallèle hors synchronisme et de provoquer un à-coup de tension en réseau et des dégâts chez le client. Le branchement du moteur sur le réseau électrique doit donc se faire au travers d'un synchronisateur de phase (comparaison en phase et en grandeur de la fréquence et de la tension entre le réseau et l'alternateur). 2, record 6, French, - temps%20de%20mise%20en%20synchronisme
Record number: 6, Textual support number: 2 OBS
La variable n° 3004 (autorisation de la synchro de phase) est utilisée dans le but de gérer la mise en synchronisation de la contre-broche. La synchronisation est commandée par la fonction M418. 3, record 6, French, - temps%20de%20mise%20en%20synchronisme
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2002-07-16
Record 7, English
Record 7, Subject field(s)
- General Mechanics (Physics)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
- Aircraft Piloting and Navigation
Record 7, Main entry term, English
- dynamic tuning
1, record 7, English, dynamic%20tuning
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
The adjustment of the gimbal inertia, flexure spring rate, or the spin rate of a rotor suspension system to achieve a condition in which the dynamically induced (negative) spring rate cancels the spring rate of the flexure suspension. 2, record 7, English, - dynamic%20tuning
Record number: 7, 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 flexures 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. 3, record 7, English, - dynamic%20tuning
Record 7, French
Record 7, Domaine(s)
- Mécanique générale (Physique)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
- Pilotage et navigation aérienne
Record 7, Main entry term, French
- accord dynamique
1, record 7, French, accord%20dynamique
masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 OBS
La plate-forme à cercles de suspension à trois axes, stabilisée par gyroscope, utilise deux gyroscopes accordés qui ont deux degrés de liberté, un rotor libre, de qualité inertielle, ainsi que trois accéléromètres à pendules. 2, record 7, French, - accord%20dynamique
Record number: 7, Textual support number: 2 OBS
Suspension dynamique accordée [...] 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. 3, record 7, French, - accord%20dynamique
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2002-07-16
Record 8, English
Record 8, Subject field(s)
- Measuring Instruments (Engineering)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 8, Main entry term, English
- mechanical gyro
1, record 8, English, mechanical%20gyro
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
- mechanical gyroscope 2, record 8, English, mechanical%20gyroscope
correct
Record 8, Textual support, English
Record number: 8, Textual support number: 1 DEF
[A] gyro based on the angular momentum of a spinning rotor or the Coriolis effect on a vibrating mass. 3, record 8, English, - mechanical%20gyro
Record number: 8, Textual support number: 1 OBS
A laser gyro has several advantages over a mechanical gyro system. The overall unit can be made smaller, lighter, and more sensitive. Also, because it has no moving parts it is less likely to break down and so is more reliable. 4, record 8, English, - mechanical%20gyro
Record 8, French
Record 8, Domaine(s)
- Instruments de mesure (Ingénierie)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 8, Main entry term, French
- gyroscope mécanique
1, record 8, French, gyroscope%20m%C3%A9canique
correct, masculine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
Le gyroscope mécanique est basé sur la rotation de pièces mécaniques (système de toupie). 2, record 8, French, - gyroscope%20m%C3%A9canique
Record number: 8, Textual support number: 2 CONT
Un corps de révolution, comme une toupie qui tourne très vite autour de son axe et qui est suspendue sans contrainte, garde son axe de rotation pointé vers une direction fixe de l'espace (étoile dans le ciel par exemple) et s'oppose à tout changement de cette direction (ce principe est mis en évidence par Foucault en 1852). C'est sur ce principe que fonctionnent les gyroscopes mécaniques. Selon leur réalisation les gyroscopes mécaniques ont un ou deux axes sensibles. 3, record 8, French, - gyroscope%20m%C3%A9canique
Record number: 8, Textual support number: 1 OBS
Le gyrolaser, contrairement au gyroscope mécanique, ne comporte aucune pièce mobile, et s'affranchit donc des erreurs dues aux frottements et aux défauts des liaisons mécaniques. Ainsi son facteur d'échelle kg est inférieur à 10 [puissance -5] contre 10 [puissance -3] pour le gyroscope classique. 4, record 8, French, - gyroscope%20m%C3%A9canique
Record 8, Key term(s)
- gyro mécanique
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2002-07-16
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
- differential synchro
1, record 9, English, differential%20synchro
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
The differential synchro..., the rotor of which is geared to the variation/grivation shaft, receives the output from the azimuth synchro TX and aligns to the angular difference between that of the DG [directional gyro] and the angle of variation or grivation as set manually on the VAR/GRIV shaft. 2, record 9, English, - differential%20synchro
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
- synchro différentiel
1, record 9, French, synchro%20diff%C3%A9rentiel
masculine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 CONT
Le synchro différentiel [...] dont le rotor est engrené sur l'arbre de variation/grivation, reçoit le signal de sortie du synchro azimutal TX et s'aligne sur la différence angulaire entre celle du directionnel et l'angle de variation ou grivation [...] réglée manuellement sur l'arbre VAR/GRIV. 1, record 9, French, - synchro%20diff%C3%A9rentiel
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2002-07-16
Record 10, English
Record 10, Subject field(s)
- Suspension (Mechanical Components)
- Navigation Instruments
Record 10, Main entry term, English
- flexure pivot
1, record 10, English, flexure%20pivot
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 CONT
Two-degree-of-freedom, dry, tuned-gimbal gyroscope. This name is used to differentiate between this instrument and the floated gyro... In the static condition as the rotor is moved up and down, the motion is accommodated by the flexure pivots associated with the gimbal. This motion is resisted by the spring force of the flexure pivots. As the motor is brought up to velocity, a speed is reached at which the gimbal-flexure pivot combination is in resonance. At resonance no force about the sensitive axes(x, y) can be transmitted between the motor shaft and the rotor; hence, the two are decoupled. 2, record 10, English, - flexure%20pivot
Record number: 10, Textual support number: 2 CONT
The bearings allowing these angular motions consist of flexure pivots ... which provide small angular deviations by flexing metal bands rather than by moving parts. 3, record 10, English, - flexure%20pivot
Record 10, French
Record 10, Domaine(s)
- Suspension (Composants mécaniques)
- Instruments de navigation
Record 10, Main entry term, French
- pivot élastique
1, record 10, French, pivot%20%C3%A9lastique
correct, masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
- liaison pivot élastique 2, record 10, French, liaison%20pivot%20%C3%A9lastique
correct, feminine noun
Record 10, Textual support, French
Record number: 10, Textual support number: 1 CONT
[...] au niveau de la conception de la structure mécanique d'un microrobot, il sera souvent préférable de remplacer un axe de rotation mettant des pièces mécaniques en mouvement relatif, qui risquent donc de rester «collées» entre elles et dont le mouvement pourra être difficilement contrôlable, par un pivot élastique. 1, record 10, French, - pivot%20%C3%A9lastique
Record number: 10, Textual support number: 2 CONT
Liaisons pivot élastique. Les lames flexibles permettent de réaliser des mouvements de faible amplitude entre deux pièces. Pour réaliser un degré de liberté en rotation en utilisant l'élasticité, il est possible d'utiliser la flexion d'une lame seule [...]. Dans ce cas, les mouvements (en plus de la rotation) sont assez importants. Outre la rotation [thêta] cherchée, cette solution conduit à une déflexion [delta] qui dépend beaucoup du type d'effort appliqué. 2, record 10, French, - pivot%20%C3%A9lastique
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2002-07-16
Record 11, English
Record 11, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 11, Main entry term, English
- erecting mechanism
1, record 11, English, erecting%20mechanism
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
In a skidding turn, the gyro precesses towards the inside of the turn. After return on the aircraft to straight and level flight, the instrument shows a turn in the direction of the skid. In a normal turn, the gyro precesses towards the inside of the turn. The precession error is quickly corrected by the erecting mechanism. 2, record 11, English, - erecting%20mechanism
Record number: 11, Textual support number: 2 CONT
The only really tricky part of the attitude indicator is its erecting mechanism. When power(vacuum) is first applied to the instrument, the mechanism quickly erects the gyro spindle to plumb-vertical in order to align the artificial horizon with the natural horizon. In flight, the erecting mechanism continually compensates the gyro for precession errors in order to keep it aligned throughout the course of a long flight. The design of the erecting mechanism is quite clever. In an air-driven attitude gyro, there are "pendulous vanes" suspended from pivots attached to the lower portion of the sealed gyro housing, one vane for each exhaust port. The vanes are positioned so that, when the gyro is erect, each vane half-covers its associated exhaust port. If the gyro tilts so that its axle is not plumb, the pendulous vanes shift so that one exhaust port is more-than-half-covered and the opposite exhaust port is less-than-half-covered. The resulting imbalance of discharge air exerts a force on the rotor housing at right angles to the direction of tilt, causing the gyro to precess to the erect position. As soon as the gyro is erect, the pendulous vanes return to a balanced condition to remove the precessing force. Pure magic! The erecting mechanism can erect the gyro quite quickly at initial power-up because the gyro doesn’t exhibit much gyroscopic rigidity at low rotor RPMs. Typically, the horizon bar becomes level within the first 10 or 15 seconds, and then its oscillations(caused by precessional nutation of the gyro) are damped out within a minute or so as the rotor comes up-to-speed. 3, record 11, English, - erecting%20mechanism
Record 11, Key term(s)
- gyroscope erecting mechanism
- gyro erecting mechanism
- erection mechanism
Record 11, French
Record 11, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 11, Main entry term, French
- mécanisme de redressement
1, record 11, French, m%C3%A9canisme%20de%20redressement
correct, masculine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
- mécanisme d'érection 2, record 11, French, m%C3%A9canisme%20d%27%C3%A9rection
correct, masculine noun
- système érecteur 3, record 11, French, syst%C3%A8me%20%C3%A9recteur
correct, masculine noun
- système d'érection 4, record 11, French, syst%C3%A8me%20d%27%C3%A9rection
correct, masculine noun
- asservissement de verticale 5, record 11, French, asservissement%20de%20verticale
correct, masculine noun
Record 11, Textual support, French
Record number: 11, Textual support number: 1 CONT
Dans un virage dérapé, le gyroscope «précesse» du côté du virage. Une fois l'avion revenu au vol rectiligne en palier, l'instrument indique un virage dans la direction du dérapage. Dans un virage normal, le gyroscope «précesse» du côté du virage. Le mécanisme de redressement du gyroscope corrige rapidement l'erreur de précession. 1, record 11, French, - m%C3%A9canisme%20de%20redressement
Record number: 11, Textual support number: 2 CONT
Description d'un Épervier [drone] [...] d. Le gyroscope vertical: Dans ce cas, les deux axes, ROLL et PITCH sont terminés par les potentiomètres qui détectent les écarts de positions angulaires du corps par rapport aux horizons roll et pitch. Les mécanismes d'érection ne sont prévus que pour maintenir la verticalité parfaite de la masse en rotation. 6, record 11, French, - m%C3%A9canisme%20de%20redressement
Record number: 11, Textual support number: 1 OBS
Horizon gyroscopique [...] La verticalité de l'axe de toupie [delta] est approximativement assurée par un érecteur (mécanique, électro-mécanique, pneumatique) produisant une raideur en quadrature de signe convenable. 7, record 11, French, - m%C3%A9canisme%20de%20redressement
Record 11, Key term(s)
- mécanisme de redressement du gyroscope
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 2002-07-16
Record 12, English
Record 12, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 12, Main entry term, English
- gyro housing
1, record 12, English, gyro%20housing
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
- sealed housing 2, record 12, English, sealed%20housing
correct
- sealed gyro housing 3, record 12, English, sealed%20gyro%20housing
correct
- gyroscope housing 4, record 12, English, gyroscope%20housing
correct
- housing 2, record 12, English, housing
correct
Record 12, Textual support, English
Record number: 12, 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 12, English, - gyro%20housing
Record number: 12, 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 12, English, - gyro%20housing
Record 12, Key term(s)
- sealed gyroscope housing
Record 12, French
Record 12, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 12, Main entry term, French
- carter
1, record 12, French, carter
correct, masculine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
- caisse du gyroscope 2, record 12, French, caisse%20du%20gyroscope
correct, feminine noun
- carter du gyroscope 2, record 12, French, carter%20du%20gyroscope
correct, masculine noun
- carter étanche 3, record 12, French, carter%20%C3%A9tanche
correct, masculine noun
- élément sensible 4, record 12, French, %C3%A9l%C3%A9ment%20sensible
correct, masculine noun
- cage de gyroscope 5, record 12, French, cage%20de%20gyroscope
correct, feminine noun
- cage 6, record 12, French, cage
correct, feminine noun
- solide 7, record 12, French, solide
masculine noun
Record 12, Textual support, French
Record number: 12, 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 12, French, - carter
Record number: 12, 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 12, French, - carter
Record number: 12, 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 12, French, - carter
Record number: 12, Textual support number: 1 OBS
Ne pas confondre avec le boîtier. 11, record 12, French, - carter
Record 12, Spanish
Record 12, Textual support, Spanish
Record 13 - internal organization data 2002-04-17
Record 13, English
Record 13, Subject field(s)
- Measuring Instruments (Engineering)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
Record 13, Main entry term, English
- dynamically tuned gyro
1, record 13, English, dynamically%20tuned%20gyro
correct
Record 13, Abbreviations, English
Record 13, Synonyms, English
- dynamically tuned gyroscope 2, record 13, English, dynamically%20tuned%20gyroscope
correct
- DTG 2, record 13, English, DTG
correct
- DTG 2, record 13, English, DTG
- tuned rotor gyro 3, record 13, English, tuned%20rotor%20gyro
correct
- tuned rotor gyroscope 4, record 13, English, tuned%20rotor%20gyroscope
correct
- tuned-rotor gyroscope 5, record 13, English, tuned%2Drotor%20gyroscope
correct
- tuned-gimbal gyroscope 6, record 13, English, tuned%2Dgimbal%20gyroscope
correct
- dry gyro 7, record 13, English, dry%20gyro
correct
- dry gyroscope 8, record 13, English, dry%20gyroscope
correct
Record 13, Textual support, English
Record number: 13, 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 13, English, - dynamically%20tuned%20gyro
Record number: 13, 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 13, English, - dynamically%20tuned%20gyro
Record 13, French
Record 13, Domaine(s)
- Instruments de mesure (Ingénierie)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
Record 13, Main entry term, French
- gyroscope à suspension dynamiquement accordée
1, record 13, French, gyroscope%20%C3%A0%20suspension%20dynamiquement%20accord%C3%A9e
correct, masculine noun
Record 13, Abbreviations, French
Record 13, Synonyms, French
- gyroscope à suspension dynamique 2, record 13, French, gyroscope%20%C3%A0%20suspension%20dynamique
correct, masculine noun
- gyroscope accordé 3, record 13, French, gyroscope%20accord%C3%A9
correct, masculine noun
- gyroscope mécanique à suspension dynamique 4, record 13, French, gyroscope%20m%C3%A9canique%20%C3%A0%20suspension%20dynamique
correct, masculine noun
- gyroscope à suspension élastique compensée 5, record 13, French, gyroscope%20%C3%A0%20suspension%20%C3%A9lastique%20compens%C3%A9e
correct, masculine noun
- gyroscope SEC 5, record 13, French, gyroscope%20SEC
correct, masculine noun
- gyroscope sec 6, record 13, French, gyroscope%20sec
correct, masculine noun
- gyroscope à suspension compensée 5, record 13, French, gyroscope%20%C3%A0%20suspension%20compens%C3%A9e
correct, masculine noun
- gyroscope à suspension accordée 5, record 13, French, gyroscope%20%C3%A0%20suspension%20accord%C3%A9e
masculine noun
- gyroscope à rotor syntonisé 7, record 13, French, gyroscope%20%C3%A0%20rotor%20syntonis%C3%A9
masculine noun
- gyroscope à suspension dynamique accordée 8, record 13, French, gyroscope%20%C3%A0%20suspension%20dynamique%20accord%C3%A9e
masculine noun
- gyroscope à rotor accordé 7, record 13, French, gyroscope%20%C3%A0%20rotor%20accord%C3%A9
masculine noun
Record 13, Textual support, French
Record number: 13, 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 13, French, - gyroscope%20%C3%A0%20suspension%20dynamiquement%20accord%C3%A9e
Record number: 13, 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 13, French, - gyroscope%20%C3%A0%20suspension%20dynamiquement%20accord%C3%A9e
Record number: 13, 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 13, French, - gyroscope%20%C3%A0%20suspension%20dynamiquement%20accord%C3%A9e
Record number: 13, 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 13, French, - gyroscope%20%C3%A0%20suspension%20dynamiquement%20accord%C3%A9e
Record 13, Key term(s)
- dry gyro
- gyroscope dit sec
Record 13, Spanish
Record 13, Textual support, Spanish
Record 14 - internal organization data 2001-09-20
Record 14, English
Record 14, Subject field(s)
- General Mechanics (Physics)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
Record 14, Main entry term, English
- counter reaction torque
1, record 14, English, counter%20reaction%20torque
correct
Record 14, Abbreviations, English
Record 14, Synonyms, English
- reaction torque 2, record 14, English, reaction%20torque
correct
- reaction force 3, record 14, English, reaction%20force
correct
Record 14, Textual support, English
Record number: 14, Textual support number: 1 DEF
reaction torque; reaction force : A torque(or force) exerted on a gimbal, gyro rotor, or accelerometer proof mass, usually as a result of applied electrical excitation exclusive of torquer(or forcer) command signals. 3, record 14, English, - counter%20reaction%20torque
Record number: 14, Textual support number: 1 CONT
Claims include a reaction control system comprising: A motor; a motor housing; a weight mounted on said motor housing. When said motor accelerates in one direction, said housing tends to twist in the opposite direction because of counter reaction torque. Said weight mounted on said motor housing so as to tend to zero out the effect of counter torque twisting on said housing when said motor accelerates. 1, record 14, English, - counter%20reaction%20torque
Record 14, French
Record 14, Domaine(s)
- Mécanique générale (Physique)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
Record 14, Main entry term, French
- couple de contre-réaction
1, record 14, French, couple%20de%20contre%2Dr%C3%A9action
correct, masculine noun
Record 14, Abbreviations, French
Record 14, Synonyms, French
- couple de réaction 2, record 14, French, couple%20de%20r%C3%A9action
correct, masculine noun
- force de réaction 3, record 14, French, force%20de%20r%C3%A9action
feminine noun
Record 14, Textual support, French
Record number: 14, 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 14, French, - couple%20de%20contre%2Dr%C3%A9action
Record 14, Spanish
Record 14, Textual support, Spanish
Record 15 - internal organization data 2001-09-20
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
- tuning condition 1, record 15, English, tuning%20condition
Record 15, Abbreviations, English
Record 15, Synonyms, English
- tuned condition 1, record 15, English, tuned%20condition
Record 15, Textual support, English
Record number: 15, Textual support number: 1 OBS
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 15, English, - tuning%20condition
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
- condition d'accord
1, record 15, French, condition%20d%27accord
correct, feminine noun
Record 15, Abbreviations, French
Record 15, Synonyms, French
- condition de compensation 2, record 15, French, condition%20de%20compensation
correct, feminine noun
- condition de tuning 3, record 15, French, condition%20de%20tuning
feminine noun
Record 15, Textual support, French
Record number: 15, 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. 3, record 15, French, - condition%20d%27accord
Record number: 15, Textual support number: 2 CONT
Le principe de fonctionnement du gyroscope à suspension accordée consiste à réaliser une exacte compensation entre la raideur statique négative -K, due aux barres de torsion, et la raideur dynamique moyenne positive, due à l'inertie de l'anneau intermédiaire. Cela se traduit par la condition de compensation ou d'accord (tuning) suivante : [formule xyz]. 2, record 15, French, - condition%20d%27accord
Record 15, Spanish
Record 15, Textual support, Spanish
Record 16 - internal organization data 2001-09-05
Record 16, English
Record 16, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 16, Main entry term, English
- natural horizon
1, record 16, English, natural%20horizon
correct
Record 16, Abbreviations, English
Record 16, Synonyms, English
- real horizon 2, record 16, English, real%20horizon
correct
- true horizon 3, record 16, English, true%20horizon
correct
Record 16, Textual support, English
Record number: 16, Textual support number: 1 CONT
The attitude indicator (also called the artificial horizon or the gyro horizon) provides the pilot with an artificial horizon as a means of reference when the natural horizon cannot be seen because of cloud, fog, rain or other obstructions to visibility... The natural horizon is represented by a horizon bar on the face of the instrument. 4, record 16, English, - natural%20horizon
Record number: 16, Textual support number: 2 CONT
The attitude indicator relies on the principle of gyroscopic rigidity in space--the rapidly-spinning rotor disk resists any attempt to disturb its orientation. Thus, the gyro provides a stable horizontal reference against which the pitch and roll attitudes of the aircraft can be measured. The "artificial horizon bar" on the face of the attitude indicator is mechanically coupled to the gyro inside, so it remains parallel to the natural horizon. The instrument's little "symbolic airplane" is fixed to the instrument case, however, so it follows the roll and pitch movements of the real airplane. Consequently, the relationship of the horizon bar to the symbolic airplane is the same as the relationship between the natural horizon and the real airplane. 5, record 16, English, - natural%20horizon
Record number: 16, Textual support number: 3 CONT
The attitude indicator and heading indicator are based on a gyro’s rigidity in space. Because a gyro resists being tipped over, it can provide a stable reference to the real horizon or to a specific direction. 2, record 16, English, - natural%20horizon
Record 16, French
Record 16, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 16, Main entry term, French
- horizon naturel
1, record 16, French, horizon%20naturel
correct, see observation, masculine noun
Record 16, Abbreviations, French
Record 16, Synonyms, French
- horizon terrestre 2, record 16, French, horizon%20terrestre
correct, see observation, masculine noun
- horizon vrai 3, record 16, French, horizon%20vrai
correct, masculine noun
Record 16, Textual support, French
Record number: 16, Textual support number: 1 CONT
Horizon artificiel. Cet instrument gyroscopique indique au pilote la position des ailes et du nez de l'avion par rapport à l'horizon terrestre lorsque l'horizon naturel n'est pas visible en raison des nuages, du brouillard, de la pluie. 2, record 16, French, - horizon%20naturel
Record number: 16, Textual support number: 2 CONT
En cas de perte des références extérieures, (rentrer dans un nuage, forte dégradation de la visibilité par brume ou pluie...), le pilote ne disposera plus que d'une vision réduite de son environnement par l'intermédiaire de l'horizon artificiel. Cet instrument sera - au même titre que l'horizon naturel en pilotage à vue - sa référence principale. 4, record 16, French, - horizon%20naturel
Record number: 16, Textual support number: 3 CONT
L'horizon artificiel dont se servent les pilotes d'avion est produit par un gyroscope en mouvement. Cet instrument est extrêmement important pour les pilotes puisqu'il leur indique la position de l'avion par rapport à l'horizon vrai. 3, record 16, French, - horizon%20naturel
Record number: 16, Textual support number: 1 OBS
Les termes «horizon terrestre» et «horizon naturel» ne sont pas de parfaits synonymes mais, en contexte de pilotage avion, on peut penser que les deux termes se confondent. 5, record 16, French, - horizon%20naturel
Record 16, Spanish
Record 16, Textual support, Spanish
Record 17 - internal organization data 2001-08-28
Record 17, English
Record 17, Subject field(s)
- Suspension (Mechanical Components)
- Navigation Instruments
Record 17, Main entry term, English
- elastic element
1, record 17, English, elastic%20element
correct
Record 17, Abbreviations, English
Record 17, Synonyms, English
Record 17, Textual support, English
Record number: 17, 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 17, English, - elastic%20element
Record 17, French
Record 17, Domaine(s)
- Suspension (Composants mécaniques)
- Instruments de navigation
Record 17, Main entry term, French
- élément élastique
1, record 17, French, %C3%A9l%C3%A9ment%20%C3%A9lastique
correct, masculine noun
Record 17, Abbreviations, French
Record 17, Synonyms, French
Record 17, Textual support, French
Record number: 17, 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 17, French, - %C3%A9l%C3%A9ment%20%C3%A9lastique
Record 17, Spanish
Record 17, Textual support, Spanish
Record 18 - internal organization data 2001-08-27
Record 18, English
Record 18, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 18, Main entry term, English
- spinning wheel suspension
1, record 18, English, spinning%20wheel%20suspension
proposal
Record 18, Abbreviations, English
Record 18, Synonyms, English
- gyroscope wheel suspension 1, record 18, English, gyroscope%20wheel%20suspension
proposal
Record 18, Textual support, English
Record number: 18, Textual support number: 1 OBS
suspension : A means of supporting and positioning a float(floated gyro), rotor(dynamically tuned gyro, electrically suspended gyro), or proof mass(accelerometer) with respect to the case. 2, record 18, English, - spinning%20wheel%20suspension
Record number: 18, Textual support number: 2 OBS
The critical part of a gyroscope is the spinning wheel, which an electric motor keeps it spinning at a rate of more than 20,000 rpm. A gyroscope wheel cross section will vary in different gyroscopes, but the general design aim is to provide the greatest moment of inertial consistent with adequate strength and heat dissipation. 3, record 18, English, - spinning%20wheel%20suspension
Record 18, Key term(s)
- gyro spinning wheel suspension
Record 18, French
Record 18, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 18, Main entry term, French
- suspension de toupie
1, record 18, French, suspension%20de%20toupie
correct, feminine noun
Record 18, Abbreviations, French
Record 18, Synonyms, French
Record 18, Textual support, French
Record number: 18, Textual support number: 1 CONT
Nous appelons gyroscope à deux degrés de liberté [...] ou gyroscope libre [...] un appareil possédant : un boîtier B, auquel est toujours associé un système détecteur d'écart [...] définissant l'axe de zéro Z de l'appareil, lié à B; [...] une suspension de toupie ayant pour but de la contraindre à tourner autour d'un point fixe O lié au boîtier (centre de rotation de la toupie), tout en lui laissant une liberté angulaire suffisante pour que [delta] soit susceptible de s'écarter de Z dans un angle solide l'entourant complètement; un moteur-toupie [...] permettant de lui communiquer un moment cinétique convenable [...] 1, record 18, French, - suspension%20de%20toupie
Record 18, Spanish
Record 18, Textual support, Spanish
Record 19 - internal organization data 2001-08-24
Record 19, English
Record 19, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 19, Main entry term, English
- mechanical gyroscopy
1, record 19, English, mechanical%20gyroscopy
correct
Record 19, Abbreviations, English
Record 19, Synonyms, English
Record 19, Textual support, English
Record number: 19, Textual support number: 1 OBS
mechanical gyro :[A] gyro based on the angular momentum of a spinning rotor or the Coriolis effect on a vibrating mass. 2, record 19, English, - mechanical%20gyroscopy
Record number: 19, Textual support number: 2 OBS
A laser gyro has several advantages over a mechanical gyro system. The overall unit can be made smaller, lighter, and more sensitive. Also, because it has no moving parts it is less likely to break down and so is more reliable. 3, record 19, English, - mechanical%20gyroscopy
Record 19, French
Record 19, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 19, Main entry term, French
- gyroscopie mécanique
1, record 19, French, gyroscopie%20m%C3%A9canique
correct, feminine noun
Record 19, Abbreviations, French
Record 19, Synonyms, French
Record 19, Textual support, French
Record number: 19, Textual support number: 1 CONT
En gyroscopie mécanique [...] on sait que le plan d'oscillation d'un pendule (on parlera plus loin d'un résonateur mécanique), ou l'axe d'une toupie en rotation rapide ont la propriété de conserver une direction fixe dans l'espace inertiel. Les appareils gyroscopiques, basés sur l'utilisation de ces principes, 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 19, French, - gyroscopie%20m%C3%A9canique
Record number: 19, Textual support number: 1 OBS
Le gyrolaser, contrairement au gyroscope mécanique, ne comporte aucune pièce mobile, et s'affranchit donc des erreurs dues aux frottements et aux défauts des liaisons mécaniques. 2, record 19, French, - gyroscopie%20m%C3%A9canique
Record 19, Spanish
Record 19, Textual support, Spanish
Record 20 - internal organization data 2001-08-24
Record 20, English
Record 20, Subject field(s)
- Measuring Instruments (Engineering)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 20, Main entry term, English
- case
1, record 20, English, case
correct, noun
Record 20, Abbreviations, English
Record 20, Synonyms, English
- gyroscope case 2, record 20, English, gyroscope%20case
correct
- case of the gyro 3, record 20, English, case%20of%20the%20gyro
correct
Record 20, Textual support, English
Record number: 20, Textual support number: 1 DEF
case: The structure which provides the mounting surfaces and establishes the reference axes. 4, record 20, English, - case
Record number: 20, 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 20, English, - case
Record 20, Key term(s)
- gyro case
- case of the gyroscope
Record 20, French
Record 20, Domaine(s)
- Instruments de mesure (Ingénierie)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 20, Main entry term, French
- boîtier du gyroscope
1, record 20, French, bo%C3%AEtier%20du%20gyroscope
correct, masculine noun
Record 20, Abbreviations, French
Record 20, Synonyms, French
- boîtier 2, record 20, French, bo%C3%AEtier
correct, masculine noun
- boîtier d'un gyroscope 3, record 20, French, bo%C3%AEtier%20d%27un%20gyroscope
correct, masculine noun
Record 20, Textual support, French
Record number: 20, 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 20, French, - bo%C3%AEtier%20du%20gyroscope
Record number: 20, 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 20, French, - bo%C3%AEtier%20du%20gyroscope
Record number: 20, 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 20, French, - bo%C3%AEtier%20du%20gyroscope
Record number: 20, Textual support number: 1 OBS
Ne pas confondre avec carter. 6, record 20, French, - bo%C3%AEtier%20du%20gyroscope
Record 20, Key term(s)
- boîtier du gyro
Record 20, Spanish
Record 20, Textual support, Spanish
Record 21 - internal organization data 2001-08-23
Record 21, English
Record 21, Subject field(s)
- Measuring Instruments (Engineering)
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
Record 21, Main entry term, English
- conventional rate gyro
1, record 21, English, conventional%20rate%20gyro
correct
Record 21, Abbreviations, English
Record 21, Synonyms, English
- classical rate gyro 2, record 21, English, classical%20rate%20gyro
- classic rate gyro 2, record 21, English, classic%20rate%20gyro
Record 21, Textual support, English
Record number: 21, 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 21, English, - conventional%20rate%20gyro
Record number: 21, Textual support number: 1 OBS
rate gyro: A special kind of gyroscope that measures rotation rate around a fixed axis. 3, record 21, English, - conventional%20rate%20gyro
Record 21, Key term(s)
- classic gyrometer
- classical gyrometer
- conventional gyrometer
Record 21, French
Record 21, Domaine(s)
- Instruments de mesure (Ingénierie)
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
Record 21, Main entry term, French
- gyromètre classique
1, record 21, French, gyrom%C3%A8tre%20classique
correct, masculine noun
Record 21, Abbreviations, French
Record 21, Synonyms, French
Record 21, Textual support, French
Record number: 21, 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 21, French, - gyrom%C3%A8tre%20classique
Record number: 21, Textual support number: 1 OBS
gyromètre : Capteur gyroscopique à un ou plusieurs degrés de liberté, utilisé pour la mesure de vitesses angulaires. 2, record 21, French, - gyrom%C3%A8tre%20classique
Record 21, Spanish
Record 21, Textual support, Spanish
Record 22 - internal organization data 2001-08-21
Record 22, English
Record 22, Subject field(s)
- Electromagnetism
- Electric Rotary Machines - Types
- Flight Instruments and Equipment (Aeroindustry)
Record 22, Main entry term, English
- torquing
1, record 22, English, torquing
correct
Record 22, Abbreviations, English
Record 22, Synonyms, English
Record 22, Textual support, English
Record number: 22, Textual support number: 1 DEF
The application of torque to a gimbal or a gyro rotor about an axis-of-freedom for the purpose of precessing, capturing, slaving, or slewing. 2, record 22, English, - torquing
Record 22, French
Record 22, Domaine(s)
- Électromagnétisme
- Machines tournantes électriques - types
- Instruments et équipement de bord (Constructions aéronautiques)
Record 22, Main entry term, French
- application d'un couple
1, record 22, French, application%20d%27un%20couple
correct, feminine noun
Record 22, Abbreviations, French
Record 22, Synonyms, French
Record 22, Textual support, French
Record number: 22, Textual support number: 1 CONT
Couple gyroscopique [...] Le lecteur n'oubliera pas que le mouvement de nutation est créé par [oméga] et que la rotation induite s'opère autour du moment cinétique H. Or toute application d'un couple transverse déplace le moment cinétique en axes inertiels. Il faut donc combiner ces 2 mouvements, pour obtenir la trajectoire absolue du moment cinétique. 2, record 22, French, - application%20d%27un%20couple
Record 22, Spanish
Record 22, Textual support, Spanish
Record 23 - internal organization data 2001-08-20
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
- rotor-speed sensitivity
1, record 23, English, rotor%2Dspeed%20sensitivity
correct
Record 23, Abbreviations, English
Record 23, Synonyms, English
- rotor speed sensitivity 2, record 23, English, rotor%20speed%20sensitivity
correct
Record 23, Textual support, English
Record number: 23, Textual support number: 1 DEF
The change in in-phase spring rate due to a change in gyro rotor speed. 1, record 23, English, - rotor%2Dspeed%20sensitivity
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
- sensibilité à la vitesse de rotation du rotor
1, record 23, French, sensibilit%C3%A9%20%C3%A0%20la%20vitesse%20de%20rotation%20du%20rotor
correct, feminine noun
Record 23, Abbreviations, French
Record 23, Synonyms, French
Record 23, Textual support, French
Record 23, Spanish
Record 23, Textual support, Spanish
Record 24 - internal organization data 2001-08-20
Record 24, English
Record 24, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 24, Main entry term, English
- radial-unbalance torque
1, record 24, English, radial%2Dunbalance%20torque
correct
Record 24, Abbreviations, English
Record 24, Synonyms, English
Record 24, Textual support, English
Record number: 24, 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 24, English, - radial%2Dunbalance%20torque
Record 24, Key term(s)
- radial unbalance torque
Record 24, French
Record 24, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 24, Main entry term, French
- couple de balourd radial
1, record 24, French, couple%20de%20balourd%20radial
masculine noun
Record 24, Abbreviations, French
Record 24, Synonyms, French
Record 24, Textual support, French
Record number: 24, 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 24, French, - couple%20de%20balourd%20radial
Record 24, Spanish
Record 24, Textual support, Spanish
Record 25 - internal organization data 2001-08-20
Record 25, English
Record 25, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 25, Main entry term, English
- rotor moment-of-inertia
1, record 25, English, rotor%20moment%2Dof%2Dinertia
correct
Record 25, Abbreviations, English
Record 25, Synonyms, English
- rotor moment of inertia 2, record 25, English, rotor%20moment%20of%20inertia
correct
Record 25, Textual support, English
Record number: 25, Textual support number: 1 DEF
The moment of inertia of a gyro rotor about its spin axis. 1, record 25, English, - rotor%20moment%2Dof%2Dinertia
Record number: 25, 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 25, English, - rotor%20moment%2Dof%2Dinertia
Record 25, French
Record 25, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 25, Main entry term, French
- moment d'inertie de rotor
1, record 25, French, moment%20d%27inertie%20de%20rotor
correct, masculine noun
Record 25, Abbreviations, French
Record 25, Synonyms, French
- moment d'inertie du rotor 2, record 25, French, moment%20d%27inertie%20du%20rotor
correct, masculine noun
Record 25, Textual support, French
Record 25, Spanish
Record 25, Textual support, Spanish
Record 26 - internal organization data 2001-08-20
Record 26, English
Record 26, Subject field(s)
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
Record 26, Main entry term, English
- run-up time
1, record 26, English, run%2Dup%20time
correct
Record 26, Abbreviations, English
Record 26, Synonyms, English
Record 26, Textual support, English
Record number: 26, Textual support number: 1 DEF
The time interval required for the gyro rotor to reach a specified speed from standstill. 2, record 26, English, - run%2Dup%20time
Record 26, French
Record 26, Domaine(s)
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
Record 26, Main entry term, French
- temps de lancement
1, record 26, French, temps%20de%20lancement
correct, masculine noun
Record 26, Abbreviations, French
Record 26, Synonyms, French
Record 26, Textual support, French
Record 26, Spanish
Record 26, Textual support, Spanish
Record 27 - internal organization data 2001-08-17
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
- gyro gain
1, record 27, English, gyro%20gain
correct
Record 27, Abbreviations, English
Record 27, Synonyms, English
Record 27, Textual support, English
Record number: 27, Textual support number: 1 DEF
The ratio of the output angle of the gimbal to the input angle of a rate-integrating gyro at zero frequency. It is numerically equal to the ratio of the rotor angular momentum to the damping coefficient. 2, record 27, English, - gyro%20gain
Record 27, Key term(s)
- gyroscope gain
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
- gain gyroscopique
1, record 27, French, gain%20gyroscopique
correct, masculine noun
Record 27, Abbreviations, French
Record 27, Synonyms, French
- gain du gyroscope 2, record 27, French, gain%20du%20gyroscope
correct, masculine noun
Record 27, Textual support, French
Record number: 27, Textual support number: 1 CONT
La radiocommande [...] Cinq fonctions sont pilotées par l'hélicoptère. [...] D'autres fonctions peuvent être employées comme le réglage par la radio du gain du gyroscope, c'est-à-dire sa sensibilité, sa faculté à compenser une dérive de l'anti-couple; un train rentrant dans le cas d'une maquette, une sélection de régime rotor dans le cas d'un régulateur de régime sur l'appareil. 3, record 27, French, - gain%20gyroscopique
Record number: 27, Textual support number: 1 PHR
Réglage du gain du gyroscope. 4, record 27, French, - gain%20gyroscopique
Record 27, Key term(s)
- gain gyro
Record 27, Spanish
Record 27, Textual support, Spanish
Record 28 - internal organization data 2001-08-17
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
- initial erection
1, record 28, English, initial%20erection
correct
Record 28, Abbreviations, English
Record 28, Synonyms, English
Record 28, Textual support, English
Record number: 28, Textual support number: 1 DEF
The mode of operation of a vertical gyro in which the gyro is being erected or slaved initially. 2, record 28, English, - initial%20erection
Record number: 28, Textual support number: 1 CONT
Gyroscopic instruments... Once the artificial horizon line is aligned with the natural horizon of the earth during initial erection, the artificial horizon is kept horizontal by the gyro on which it is mounted. An erection mechanism automatically rights the gyro when precession occurs due to maneuvers or friction. When the older-type gyro tumbles as a result of extreme attitude changes, the rotor normally precesses slowly back to the horizontal plane. Even an attitude indicator in perfect condition can give slight erroneous readings. Small errors due to acceleration and deceleration are not significant because the erection device corrects them promptly; nonetheless, the pilot should be aware of them... 3, record 28, English, - initial%20erection
Record number: 28, Textual support number: 1 OBS
The initial erection rate is usually relatively high. 4, record 28, English, - initial%20erection
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
- érection initiale
1, record 28, French, %C3%A9rection%20initiale
correct, feminine noun
Record 28, Abbreviations, French
Record 28, Synonyms, French
- redressement initial 2, record 28, French, redressement%20initial
masculine noun
Record 28, Textual support, French
Record 28, Spanish
Record 28, Textual support, Spanish
Record 29 - internal organization data 2001-08-16
Record 29, English
Record 29, Subject field(s)
- Suspension (Mechanical Components)
- Navigation Instruments
Record 29, Main entry term, English
- flexure
1, record 29, English, flexure
correct, noun
Record 29, Abbreviations, English
Record 29, Synonyms, English
Record 29, Textual support, English
Record number: 29, 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 29, English, - flexure
Record 29, French
Record 29, Domaine(s)
- Suspension (Composants mécaniques)
- Instruments de navigation
Record 29, Main entry term, French
- joint flexible
1, record 29, French, joint%20flexible
masculine noun
Record 29, Abbreviations, French
Record 29, Synonyms, French
Record 29, Textual support, French
Record 29, Spanish
Record 29, Textual support, Spanish
Record 30 - internal organization data 2001-08-16
Record 30, English
Record 30, Subject field(s)
- Astrophysics and Cosmography
- Flight Instruments and Equipment (Aeroindustry)
- Navigation Instruments
- Aircraft Piloting and Navigation
Record 30, Main entry term, English
- dynamic time constant
1, record 30, English, dynamic%20time%20constant
correct
Record 30, Abbreviations, English
Record 30, Synonyms, English
Record 30, Textual support, English
Record number: 30, 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 30, English, - dynamic%20time%20constant
Record number: 30, 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 30, English, - dynamic%20time%20constant
Record 30, French
Record 30, Domaine(s)
- Astrophysique et cosmographie
- Instruments et équipement de bord (Constructions aéronautiques)
- Instruments de navigation
- Pilotage et navigation aérienne
Record 30, Main entry term, French
- constante de temps dynamique
1, record 30, French, constante%20de%20temps%20dynamique
feminine noun
Record 30, Abbreviations, French
Record 30, Synonyms, French
Record 30, Textual support, French
Record 30, Spanish
Record 30, Textual support, Spanish
Record 31 - internal organization data 2001-08-13
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
- pitch synchro
1, record 31, English, pitch%20synchro
correct
Record 31, Abbreviations, English
Record 31, Synonyms, English
Record 31, Textual support, English
Record number: 31, Textual support number: 1 CONT
During heading align, the rotor of the resolver is positioned so that it transforms the N-S and E-W liquid level signals into pitch and roll components which are referenced to heading. The pitch component is amplified, demodulated and summed with amplified and demodulated feedback signals from the VG [vertical gyro] roll and pitch pickoffs and the pitch synchro. The combined signal is then modulated, amplified and converted to DC [direct current] to drive the platform pitch gimbal torque motor until the input signals are nulled. 2, record 31, English, - pitch%20synchro
Record number: 31, Textual support number: 2 CONT
The J.E.T. ADI-350 is available with any optional combination of roll and pitch synchro pick-off, flight director needles and rate of turn. It has mechanical erection and has an integral inclinometer (slip/skid indicator). 3, record 31, English, - pitch%20synchro
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
- synchro de tangage
1, record 31, French, synchro%20de%20tangage
masculine noun
Record 31, Abbreviations, French
Record 31, Synonyms, French
- synchroniseur de tangage 2, record 31, French, synchroniseur%20de%20tangage
masculine noun
Record 31, Textual support, French
Record number: 31, Textual support number: 1 CONT
Durant l'alignement sur le cap, le rotor du résolver est mis en position de telle sorte qu'il transforme les signaux des niveaux à liquide N.-S. et E.-O. en composantes de tangage et de roulis en référence au cap. La composante de tangage est amplifiée, démodulée et composée avec des signaux de réaction amplifiés et démodulés venant des capteurs de roulis et de tangage du VG [gyroscope directionnel] et du synchro de tangage. Ce signal composé est alors modulé, amplifié et converti en courant continu pour entraîner le moteur couple du cardan de tangage de la plate-forme jusqu'à ce que les signaux d'entrée soient annulés. 1, record 31, French, - synchro%20de%20tangage
Record 31, Spanish
Record 31, Textual support, Spanish
Record 32 - internal organization data 2001-08-13
Record 32, English
Record 32, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 32, Main entry term, English
- variation/grivation shaft
1, record 32, English, variation%2Fgrivation%20shaft
correct
Record 32, Abbreviations, English
Record 32, Synonyms, English
- VAR/GRIV shaft 1, record 32, English, VAR%2FGRIV%20shaft
correct
Record 32, Textual support, English
Record number: 32, Textual support number: 1 CONT
The differential synchro..., the rotor of which is geared to the variation/grivation shaft, receives the output from the azimuth synchro TX and aligns to the angular difference between that of the DG [directional gyro] and the angle of variation or grivation as set manually on the VAR/GRIV shaft. 1, record 32, English, - variation%2Fgrivation%20shaft
Record 32, French
Record 32, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 32, Main entry term, French
- arbre de variation/grivation
1, record 32, French, arbre%20de%20variation%2Fgrivation
correct, masculine noun
Record 32, Abbreviations, French
Record 32, Synonyms, French
- arbre de VAR/GRIV 1, record 32, French, arbre%20de%20VAR%2FGRIV
correct, masculine noun
Record 32, Textual support, French
Record number: 32, Textual support number: 1 CONT
Le synchro différentiel [...] dont le rotor est engrené sur l'arbre de variation/grivation, reçoit le signal de sortie du synchro azimutal TX et s'aligne sur la différence angulaire entre celle du directionnel et l'angle de variation ou grivation telle que réglée manuellement sur l'arbre VAR/GRIV. 1, record 32, French, - arbre%20de%20variation%2Fgrivation
Record 32, Spanish
Record 32, Textual support, Spanish
Record 33 - internal organization data 2001-08-13
Record 33, English
Record 33, Subject field(s)
- Applications of Electronics
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
- Launching and Space Maneuvering
Record 33, Main entry term, English
- roll pickoff
1, record 33, English, roll%20pickoff
correct
Record 33, Abbreviations, English
Record 33, Synonyms, English
Record 33, Textual support, English
Record number: 33, Textual support number: 1 CONT
During heading align, the rotor of the resolver is positioned so that it transforms the N-S and E-W liquid level signals into pitch and roll components which are referenced to heading. The pitch component is amplified, demodulated and summed with amplified and demodulated feedback signals from the VG [vertical gyro] roll and pitch pickoffs and the pitch synchro. The combined signal is then modulated, amplified and converted to DC [direct current] to drive the platform pitch gimbal torque motor until the input signals are nulled. 2, record 33, English, - roll%20pickoff
Record number: 33, Textual support number: 2 CONT
Gyroscope drive consisting of: gas bottle and locking mechanism, roll pickoff, pitch pickoff and pickoff electronic. 3, record 33, English, - roll%20pickoff
Record number: 33, Textual support number: 1 OBS
pick-off: A device used to convert mechanical motion into a proportional electric signal. 4, record 33, English, - roll%20pickoff
Record 33, Key term(s)
- roll pick-off
Record 33, French
Record 33, Domaine(s)
- Applications de l'électronique
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
- Lancement et manœuvres dans l'espace
Record 33, Main entry term, French
- capteur de roulis
1, record 33, French, capteur%20de%20roulis
correct, masculine noun
Record 33, Abbreviations, French
Record 33, Synonyms, French
Record 33, Textual support, French
Record number: 33, Textual support number: 1 CONT
Les capteurs mesurant des angles autour d'axes proches de l'axe X du satellite sont généralement qualifiés de capteurs de roulis, les capteurs mesurant des angles autour d'axes proches de l'axe Y sont de même qualifiés de capteurs de tangage, et les capteurs mesurant des angles autour d'axes proches de l'axe Z sont qualifiés de capteurs de lacet. Ceci ne signifie pas que ces capteurs mesurent des angles de Cardan à partir d'un repère de référence inertiel, ils peuvent très bien mesurer par exemple un angle dièdre entre le plan (X, Z) et le plan (X, Soleil), on parlera dans ce cas d'un capteur de roulis Soleil. 2, record 33, French, - capteur%20de%20roulis
Record number: 33, Textual support number: 2 CONT
Durant l'alignement sur le cap, le rotor du résolver est mis en position de telle sorte qu'il transforme les signaux des niveaux à liquide N.-S. et E.-O. en composantes de tangage et de roulis en référence au cap. La composante de tangage est amplifiée, démodulée et composée avec des signaux de réaction amplifiés et démodulés venant des capteurs de roulis et de tangage du VG [gyroscope directionnel] et du synchro de tangage. Ce signal composé est alors modulé, amplifié et converti en courant continu pour entraîner le moteur couple du cardan de tangage de la plate-forme jusqu'à ce que les signaux d'entrée soient annulés. 3, record 33, French, - capteur%20de%20roulis
Record number: 33, Textual support number: 1 OBS
Quand le véhicule est connecté à un PC par un lien, l'interface permet d'agir directement sur les actionneurs (propulseur et gouvernes). Cette interface permet aussi de visualiser en temps réel, les données issues des capteurs : roulis, tangage, lacet, profondeur, vitesse de roulis et de tangage, ainsi que d'afficher les coordonnées fournies par le récepteur GPS. 4, record 33, French, - capteur%20de%20roulis
Record 33, Spanish
Record 33, Textual support, Spanish
Record 34 - internal organization data 2001-08-13
Record 34, English
Record 34, Subject field(s)
- Applications of Electronics
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
Record 34, Main entry term, English
- pitch pickoff
1, record 34, English, pitch%20pickoff
correct
Record 34, Abbreviations, English
Record 34, Synonyms, English
Record 34, Textual support, English
Record number: 34, Textual support number: 1 CONT
During heading align, the rotor of the resolver is positioned so that it transforms the N-S and E-W liquid level signals into pitch and roll components which are referenced to heading. The pitch component is amplified, demodulated and summed with amplified and demodulated feedback signals from the VG [vertical gyro] roll and pitch pickoffs and the pitch synchro. The combined signal is then modulated, amplified and converted to DC [direct current] to drive the platform pitch gimbal torque motor until the input signals are nulled. 2, record 34, English, - pitch%20pickoff
Record number: 34, Textual support number: 2 CONT
The AUTOFLUG FGC T is a cold-gas driven free displacement gyroscope concerning roll axis and yaw (pitch) axis. The FGC T consists of the following subassemblies: Gyroscope housing, gimbal bolt mechanism, gimbal system. Gyroscope drive consisting of: gas bottle and locking mechanism, roll pickoff, pitch pickoff and pickoff electronic. 3, record 34, English, - pitch%20pickoff
Record 34, Key term(s)
- pitch pick-off
Record 34, French
Record 34, Domaine(s)
- Applications de l'électronique
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
Record 34, Main entry term, French
- capteur de tangage
1, record 34, French, capteur%20de%20tangage
correct, masculine noun
Record 34, Abbreviations, French
Record 34, Synonyms, French
Record 34, Textual support, French
Record number: 34, Textual support number: 1 CONT
Les capteurs mesurant des angles autour d'axes proches de l'axe X du satellite sont généralement qualifiés de capteurs de roulis, les capteurs mesurant des angles autour d'axes proches de l'axe Y sont de même qualifiés de capteurs de tangage, et les capteurs mesurant des angles autour d'axes proches de l'axe Z sont qualifiés de capteurs de lacet. Ceci ne signifie pas que ces capteurs mesurent des angles de Cardan à partir d'un repère de référence inertiel, ils peuvent très bien mesurer par exemple un angle dièdre entre le plan (X, Z) et le plan (X, Soleil), on parlera dans ce cas d'un capteur de roulis Soleil. 2, record 34, French, - capteur%20de%20tangage
Record number: 34, Textual support number: 2 CONT
Durant l'alignement sur le cap, le rotor du résolver est mis en position de telle sorte qu'il transforme les signaux des niveaux à liquide N.-S. et E.-O. en composantes de tangage et de roulis en référence au cap. La composante de tangage est amplifiée, démodulée et composée avec des signaux de réaction amplifiés et démodulés venant des capteurs de roulis et de tangage du VG [gyroscope directionnel] et du synchro de tangage. Ce signal composé est alors modulé, amplifié et converti en courant continu pour entraîner le moteur couple du cardan de tangage de la plate-forme jusqu'à ce que les signaux d'entrée soient annulés. 3, record 34, French, - capteur%20de%20tangage
Record number: 34, Textual support number: 1 OBS
Quand le véhicule est connecté à un PC par un lien, l'interface permet d'agir directement sur les actionneurs (propulseur et gouvernes). Cette interface permet aussi de visualiser en temps réel, les données issues des capteurs : roulis, tangage, lacet, profondeur, vitesse de roulis et de tangage, ainsi que d'afficher les coordonnées fournies par le récepteur GPS. 4, record 34, French, - capteur%20de%20tangage
Record 34, Spanish
Record 34, Textual support, Spanish
Record 35 - internal organization data 2001-08-13
Record 35, English
Record 35, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 35, Main entry term, English
- roll component
1, record 35, English, roll%20component
correct
Record 35, Abbreviations, English
Record 35, Synonyms, English
Record 35, Textual support, English
Record number: 35, Textual support number: 1 CONT
The basic attitude sensor was the three-gyro inertial reference package. It contained two air-tight integrating gyro units to sense pitch and yaw, and one miniature integrating gyro unit to sense roll. The pitch and roll gyros were torqued by signals obtained by two Barnes mod IIA infrared horizon sensors. Gyrocompassing oriented the vehicle to an orbit plane yaw reference by detecting a component of the programmed pitch rate through the roll horizon sensor. The geocentric pitch rate (typically 4 deg/min, for a low-altitude orbit) was programmed as a constant torque to the pitch gyro. This pitch component, if a yaw error was present, would be sensed differentially when compared with the roll components of the two horizon-sensor heads. The differential would be seen as a function of yaw error. 2, record 35, English, - roll%20component
Record number: 35, Textual support number: 2 CONT
During heading align, the rotor of the resolver is positioned so that it transforms the N-S and E-W liquid level signals into pitch and roll components which are referenced to heading. The pitch component is amplified, demodulated and summed with amplified and demodulated feedback signals from the VG [vertical gyro] roll and pitch pickoffs and the pitch synchro. The combined signal is then modulated, amplified and converted to DC [direct current] to drive the platform pitch gimbal torque motor until the input signals are nulled. 1, record 35, English, - roll%20component
Record 35, French
Record 35, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 35, Main entry term, French
- composante en roulis
1, record 35, French, composante%20en%20roulis
correct, feminine noun
Record 35, Abbreviations, French
Record 35, Synonyms, French
- composante de roulis 2, record 35, French, composante%20de%20roulis
feminine noun
Record 35, Textual support, French
Record number: 35, Textual support number: 1 CONT
Durant l'alignement sur le cap, le rotor du résolver est mis en position de telle sorte qu'il transforme les signaux des niveaux à liquide N.-S. et E.-O. en composantes de tangage et de roulis en référence au cap. La composante de tangage est amplifiée, démodulée et composée avec des signaux de réaction amplifiés et démodulés venant des capteurs de roulis et de tangage du VG [gyroscope directionnel] et du synchro de tangage. Ce signal composé est alors modulé, amplifié et converti en courant continu pour entraîner le moteur couple du cardan de tangage de la plate-forme jusqu'à ce que les signaux d'entrée soient annulés. 2, record 35, French, - composante%20en%20roulis
Record number: 35, Textual support number: 2 CONT
Il s'agit de la rotation galiléenne mais [...] la rotation à annuler quand on souhaite obtenir un pointage Terre parfait est la rotation relative au repère orbital de composantes en roulis, tangage et lacet. 1, record 35, French, - composante%20en%20roulis
Record 35, Spanish
Record 35, Textual support, Spanish
Record 36 - internal organization data 2001-08-13
Record 36, English
Record 36, Subject field(s)
- Aircraft Piloting and Navigation
- Launching and Space Maneuvering
Record 36, Main entry term, English
- pitch component
1, record 36, English, pitch%20component
correct
Record 36, Abbreviations, English
Record 36, Synonyms, English
Record 36, Textual support, English
Record number: 36, Textual support number: 1 CONT
The basic attitude sensor was the three-gyro inertial reference package. It contained two air-tight integrating gyro units to sense pitch and yaw, and one miniature integrating gyro unit to sense roll. The pitch and roll gyros were torqued by signals obtained by two Barnes mod IIA infrared horizon sensors. Gyrocompassing oriented the vehicle to an orbit plane yaw reference by detecting a component of the programmed pitch rate through the roll horizon sensor. The geocentric pitch rate (typically 4 deg/min, for a low-altitude orbit) was programmed as a constant torque to the pitch gyro. This pitch component, if a yaw error was present, would be sensed differentially when compared with the roll components of the two horizon-sensor heads. The differential would be seen as a function of yaw error. 2, record 36, English, - pitch%20component
Record number: 36, Textual support number: 2 CONT
During heading align, the rotor of the resolver is positioned so that it transforms the N-S and E-W liquid level signals into pitch and roll components which are referenced to heading. The pitch component is amplified, demodulated and summed with amplified and demodulated feedback signals from the VG [vertical gyro] roll and pitch pickoffs and the pitch synchro. The combined signal is then modulated, amplified and converted to DC [direct current] to drive the platform pitch gimbal torque motor until the input signals are nulled. 3, record 36, English, - pitch%20component
Record 36, French
Record 36, Domaine(s)
- Pilotage et navigation aérienne
- Lancement et manœuvres dans l'espace
Record 36, Main entry term, French
- composante en tangage
1, record 36, French, composante%20en%20tangage
correct, feminine noun
Record 36, Abbreviations, French
Record 36, Synonyms, French
- composante de tangage 2, record 36, French, composante%20de%20tangage
feminine noun
Record 36, Textual support, French
Record number: 36, Textual support number: 1 CONT
Durant l'alignement sur le cap, le rotor du résolver est mis en position de telle sorte qu'il transforme les signaux des niveaux à liquide N.-S. et E.-O. en composantes de tangage et de roulis en référence au cap. La composante de tangage est amplifiée, démodulée et composée avec des signaux de réaction amplifiés et démodulés venant des capteurs de roulis et de tangage du VG [gyroscope directionnel] et du synchro de tangage. Ce signal composé est alors modulé, amplifié et converti en courant continu pour entraîner le moteur couple du cardan de tangage de la plate-forme jusqu'à ce que les signaux d'entrée soient annulés. 2, record 36, French, - composante%20en%20tangage
Record number: 36, Textual support number: 2 CONT
[...] il s'agit de la rotation galiléenne mais [...] la rotation à annuler quand on souhaite obtenir un pointage Terre parfait est la rotation relative au repère orbital de composantes en roulis, tangage et lacet. 1, record 36, French, - composante%20en%20tangage
Record 36, Spanish
Record 36, Textual support, Spanish
Record 37 - internal organization data 2001-08-09
Record 37, English
Record 37, Subject field(s)
- Electromagnetism
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 37, Main entry term, English
- microsyn
1, record 37, English, microsyn
correct
Record 37, Abbreviations, English
Record 37, Synonyms, English
Record 37, Textual support, English
Record number: 37, Textual support number: 1 DEF
An electromagnetic device often used as a pickoff in single-degree-of-freedom gyros and accelerometers. It has a stator, fastened to the sensor case, containing primary and secondary sets of windings, and a rotor, without windings, that is attached to the float. 2, record 37, English, - microsyn
Record number: 37, Textual support number: 1 CONT
The microsyn which resembles a motor, has four poles and a rotating armature. The armature does not carry any windings, instead it consists of laminated sections of magnetic material. The stator consists primary and secondary windings. 3, record 37, English, - microsyn
Record number: 37, Textual support number: 2 CONT
The RG78 Series is the smallest rate gyro manufactured by Humphrey. The design uses a miniature spin motor and gimbal coupled to a torsion bar and rotor. A microsyn is used to provide the output signal. Silicon oil is used for damping. The combination of oil damping and light gimbal inertia helps the gyro to survive in the harshest of environments. 4, record 37, English, - microsyn
Record 37, French
Record 37, Domaine(s)
- Électromagnétisme
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 37, Main entry term, French
- microsyn
1, record 37, French, microsyn
masculine noun
Record 37, Abbreviations, French
Record 37, Synonyms, French
Record 37, Textual support, French
Record number: 37, Textual support number: 1 CONT
Le microsyn ressemble beaucoup à un moteur; il a quatre pôles et une armature tournante. L'armature ne contient pas de bobines d'enroulement, étant faite de matériau magnétique laminé. Le stator se compose de bobines primaires et secondaires. 1, record 37, French, - microsyn
Record 37, Spanish
Record 37, Textual support, Spanish
Record 38 - internal organization data 2001-06-21
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
- torque vector
1, record 38, English, torque%20vector
correct
Record 38, Abbreviations, English
Record 38, Synonyms, English
Record 38, Textual support, English
Record number: 38, 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 38, English, - torque%20vector
Record number: 38, 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 38, English, - torque%20vector
Record 38, Key term(s)
- twist vector
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
- vecteur de couple
1, record 38, French, vecteur%20de%20couple
masculine noun
Record 38, Abbreviations, French
Record 38, Synonyms, French
- vecteur couple 2, record 38, French, vecteur%20couple
masculine noun
Record 38, Textual support, French
Record number: 38, 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 38, French, - vecteur%20de%20couple
Record 38, Spanish
Record 38, Textual support, Spanish
Record 39 - internal organization data 2001-06-21
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
- pendulum torque
1, record 39, English, pendulum%20torque
correct
Record 39, Abbreviations, English
Record 39, Synonyms, English
Record 39, Textual support, English
Record number: 39, Textual support number: 1 CONT
Gyrocompass... as the Earth rotates, the north end of the gyro rotor tilts upward. The ensuing dip angle results in a pendulum torque, down at the south end and up at the north end of the rotor axis. This torque causes the north end of the gyro axis to precess westward. As soon as the gyro axis passes through the north-south meridian, the action reverses. 1, record 39, English, - pendulum%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 pendulaire
1, record 39, French, couple%20pendulaire
correct, masculine noun
Record 39, Abbreviations, French
Record 39, Synonyms, French
Record 39, Textual support, French
Record number: 39, Textual support number: 1 CONT
Moteur électrique à vitesse variable [...]: Du fait que le convertisseur (Redresseur/onduleur) ne délivre pas une sinusoïde parfaite au moteur, de multiples couples d'excitation alternés (couples pendulaires ou vibrations torsionnelles) sont présents à l'entrefer du moteur: ces couples sont retransmis dans la ligne d'arbre avec plus ou moins d'amortissement selon le cas. 2, record 39, French, - couple%20pendulaire
Record 39, Spanish
Record 39, Textual support, Spanish
Record 40 - internal organization data 2001-06-21
Record 40, English
Record 40, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 40, Main entry term, English
- vertical gimbal ring
1, record 40, English, vertical%20gimbal%20ring
correct
Record 40, Abbreviations, English
Record 40, Synonyms, English
- vertical gimbal 2, record 40, English, vertical%20gimbal
correct
Record 40, Textual support, English
Record number: 40, 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 40, English, - vertical%20gimbal%20ring
Record number: 40, 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 40, English, - vertical%20gimbal%20ring
Record 40, French
Record 40, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 40, Main entry term, French
- anneau vertical
1, record 40, French, anneau%20vertical
correct, masculine noun
Record 40, Abbreviations, French
Record 40, Synonyms, French
- anneau de cardan vertical 2, record 40, French, anneau%20de%20cardan%20vertical
masculine noun
- anneau de suspension vertical 2, record 40, French, anneau%20de%20suspension%20vertical
masculine noun
Record 40, Textual support, French
Record number: 40, 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 40, French, - anneau%20vertical
Record 40, Spanish
Record 40, Textual support, Spanish
Record 41 - internal organization data 1976-06-19
Record 41, English
Record 41, Subject field(s)
- Electrical Appliances and Equipment
Record 41, Main entry term, English
- gyro housing 1, record 41, English, gyro%20housing
Record 41, Abbreviations, English
Record 41, Synonyms, English
Record 41, Textual support, English
Record number: 41, Textual support number: 1 OBS
"The rotor is fastened to the gyro housing" 1, record 41, English, - gyro%20housing
Record 41, French
Record 41, Domaine(s)
- Appareillage électrique
Record 41, Main entry term, French
- bâti du gyroscope 1, record 41, French, b%C3%A2ti%20du%20gyroscope
Record 41, Abbreviations, French
Record 41, Synonyms, French
Record 41, Textual support, French
Record number: 41, Textual support number: 1 OBS
" Le rotor est fixé au bâti du gyroscope" 1, record 41, French, - b%C3%A2ti%20du%20gyroscope
Record 41, Spanish
Record 41, Textual support, Spanish
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