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mouvement de va-et-vient rapide [1 record]
Record 1 - internal organization data 2001-09-17
Record 1, English
Record 1, Subject field(s)
- Lasers and Masers
- General Mechanics (Physics)
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 1, Main entry term, English
- dithering
1, record 1, English, dithering
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- mechanical dither 2, record 1, English, mechanical%20dither
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The advantage of the multioscillator laser gyro is that changes in bias magnitude do not directly affect the gyro output... a change in the frequency separation between oppositely polarized pairs will not directly affect output. Therefore, dithering is not required and there is no periodic passing through the lock-in region. 2, record 1, English, - dithering
Record number: 1, Textual support number: 1 OBS
dither. To periodically tilt from side to side. 3, record 1, English, - dithering
Record 1, French
Record 1, Domaine(s)
- Masers et lasers
- Mécanique générale (Physique)
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 1, Main entry term, French
- mouvement de va-et-vient rapide
1, record 1, French, mouvement%20de%20va%2Det%2Dvient%20rapide
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les défauts de surface des miroirs [des gyrolasers], même infimes, provoquent la rétrodiffusion d'une partie de chaque rayon qui se couple alors avec le rayon se propageant dans l'autre sens. Il se crée ainsi un couplage (lock-in) entre les faisceaux lasers et une zone aveugle pour les vitesses angulaires faibles. Pour éviter ce phénomène qui nuirait à la précision de la mesure de rotation, il est nécessaire d'agiter la cavité de mouvements de va-et-vient rapides (dithering). 1, record 1, French, - mouvement%20de%20va%2Det%2Dvient%20rapide
Record 1, Spanish
Record 1, Textual support, Spanish
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