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GYROSCOPE DRIFT [1 record]
Record 1 - internal organization data 2017-01-13
Record 1, English
Record 1, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 1, Main entry term, English
- gyro drift
1, record 1, English, gyro%20drift
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- gyroscopic drift 2, record 1, English, gyroscopic%20drift
correct
- drift 3, record 1, English, drift
correct, noun
- drifting 4, record 1, English, drifting
correct, see observation
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Angular rate gyro accuracy is characterized by two parameters: scale factor and drift. The scale factor describes the capability of the gyro to accurately sense angular velocity at different angular rates ... Gyro drift characterizes the ability of the gyro to reference all rate measurements to the nominal zero point. It appears as an additive term on the gyro output, so any actual drift away from a given or predetermined value will cause the angular errors to accumulate. 3, record 1, English, - gyro%20drift
Record number: 1, Textual support number: 2 CONT
The free gyro ... can be converted to a directional reference by remounting its case with the spin axis horizontal and the indicator axis vertical. The indicator will then give the airplane's heading. Gyro drift is countered by slaving the instrument to the Earth's magnetic field, via either a separate magnetic compass or a flux valve device. 5, record 1, English, - gyro%20drift
Record number: 1, Textual support number: 1 OBS
The change in azimuth (direction) of the spin axis is often referred to as "drifting": sometimes "tilting" and "drifting" are collectively called "apparent wander." 4, record 1, English, - gyro%20drift
Record 1, Key term(s)
- gyroscope drift
Record 1, French
Record 1, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 1, Main entry term, French
- dérive du gyroscope
1, record 1, French, d%C3%A9rive%20du%20gyroscope
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- dérive gyroscopique 2, record 1, French, d%C3%A9rive%20gyroscopique
correct, feminine noun
- dérive 3, record 1, French, d%C3%A9rive
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Le défaut de stabilité, appelé dérive du gyroscope mesurée en degrés par heure [...], ou en degrés par seconde [...], dépend de la technologie mise en œuvre et de la qualité de la «suspension» de l'élément sensible et de son isolement vis-à-vis des influences externes (température, gravité, gaz ambiant, etc.). 4, record 1, French, - d%C3%A9rive%20du%20gyroscope
Record number: 1, Textual support number: 2 CONT
Pour l'utilisation sur les centrales inertielles, il s'est révélé nécessaire de développer des gyroscopes présentant une dérive pratiquement négligeable. Or la cause principale de cette dérive réside dans les frottements qui s'exercent sur le corps du gyroscope, dont la vitesse de rotation dépasse 20 000 tr/min. Divers moyens ont été imaginés pour créer des suspensions sans frottement [...] 5, record 1, French, - d%C3%A9rive%20du%20gyroscope
Record number: 1, Textual support number: 1 OBS
L'usage fait donner des appellations différentes à cette composante de rotation instantanée [...] : lorsqu'elle est due à un phénomène déterministe et connu, on l'appelle précession gyroscopique; lorsqu'elle est due à un phénomène aléatoire, ou bien que l'on ne maîtrise pas, on l'appelle dérive gyroscopique. 6, record 1, French, - d%C3%A9rive%20du%20gyroscope
Record number: 1, Textual support number: 2 OBS
Ce mouvement est dit «mouvement de précession» s'il est provoqué volontairement, et «dérive» s'il est dû à un élément perturbateur. 7, record 1, French, - d%C3%A9rive%20du%20gyroscope
Record 1, Spanish
Record 1, Textual support, Spanish
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