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PRECESSION APPARENTE [2 records]
Record 1 - internal organization data 2002-07-16
Record 1, English
Record 1, Subject field(s)
- The Earth (Astronomy)
- Geophysics
- General Mechanics (Physics)
Record 1, Main entry term, English
- apparent precession
1, record 1, English, apparent%20precession
correct, NATO, standardized
Record 1, Abbreviations, English
Record 1, Synonyms, English
- apparent wander 2, record 1, English, apparent%20wander
correct, NATO, standardized
- apparent drift 3, record 1, English, apparent%20drift
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The apparent deflection of the gyro axis, relative to the earth, due to the rotating effect of the earth and not due to any applied force. 4, record 1, English, - apparent%20precession
Record number: 1, Textual support number: 2 DEF
Apparent change in the direction of the axis of rotation of a spinning body, such as a gyroscope, due to rotation of the earth. 5, record 1, English, - apparent%20precession
Record number: 1, Textual support number: 1 OBS
apparent precession; apparent wander: terms and definition standardized by NATO. 6, record 1, English, - apparent%20precession
Record 1, French
Record 1, Domaine(s)
- Terre (Astronomie)
- Géophysique
- Mécanique générale (Physique)
Record 1, Main entry term, French
- précession apparente
1, record 1, French, pr%C3%A9cession%20apparente
correct, feminine noun, NATO, standardized, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
- dérive apparente 2, record 1, French, d%C3%A9rive%20apparente
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Déviation apparente de l'axe d'un gyroscope par rapport à la terre. Elle est due à la rotation terrestre et non pas à une force appliquée au gyroscope. 3, record 1, French, - pr%C3%A9cession%20apparente
Record number: 1, Textual support number: 1 OBS
précession apparente : terme et définition normalisés par l'OTAN. 4, record 1, French, - pr%C3%A9cession%20apparente
Record number: 1, Textual support number: 2 OBS
précession apparente : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - opérations aériennes. 4, record 1, French, - pr%C3%A9cession%20apparente
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Tierra (Astronomía)
- Geofísica
- Mecánica general (Física)
Record 1, Main entry term, Spanish
- precesión aparente
1, record 1, Spanish, precesi%C3%B3n%20aparente
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Desviación aparente del eje del giróscopo respecto a la tierra, debido al efecto de la rotación de la tierra y no a causa de alguna fuerza aplicada. 2, record 1, Spanish, - precesi%C3%B3n%20aparente
Record 2 - internal organization data 2002-07-16
Record 2, English
Record 2, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 2, Main entry term, English
- apparent precession error
1, record 2, English, apparent%20precession%20error
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Precession error. Frictional forces in the gyros system cause it to precess. This precession causes a creep or drift in the reading on the card, amounting approximately 3 degrees in 15 minutes. The gyro is also subject to apparent precession. Gyroscopic inertia keeps the spinning gyro fixed in space so that, relative to space, it does not move. But the earth rotating underneath it gives it an apparent motion relative to the earth. This causes an apparent drift, or precession, which varies with latitude... Precession error, both mechanical and apparent, must be corrected for at regular intervals of about 15 minutes. 1, record 2, English, - apparent%20precession%20error
Record number: 2, Textual support number: 1 OBS
apparent precession: Apparent change in the direction of the axis of rotation of a spinning body, as a gyroscope, due to rotation of the Earth. 2, record 2, English, - apparent%20precession%20error
Record 2, French
Record 2, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 2, Main entry term, French
- erreur de précession apparente
1, record 2, French, erreur%20de%20pr%C3%A9cession%20apparente
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Erreur de précession. Les forces de friction présentes dans le système gyroscopique engendrent la précession. Cette précession occasionne un «glissement» ou une «dérive» d'environ 3 degrés dans la lecture de l'instrument et ce, à toutes les 15 minutes. Le gyroscope est aussi sujet à la précession apparente. L'inertie gyroscopique garde le gyroscope fixe dans l'espace de sorte qu'il ne bouge pas par rapport à l'espace. Cependant, la Terre qui tourne en dessous du gyroscope donne à ce dernier un mouvement apparent par rapport à la Terre. La rotation de la Terre cause une dérive apparente, ou précession, qui varie avec la latitude [...] L'erreur de précession, à la fois mécanique et apparente, doit être corrigée à intervalles réguliers, c.-à-d. toutes les 15 minutes. 1, record 2, French, - erreur%20de%20pr%C3%A9cession%20apparente
Record number: 2, Textual support number: 1 OBS
précession apparente : Déviation apparente de l'axe d'un gyroscope par rapport à la Terre. Elle est due à la rotation terrestre et non pas à une force appliquée au gyroscope. 2, record 2, French, - erreur%20de%20pr%C3%A9cession%20apparente
Record 2, Spanish
Record 2, Textual support, Spanish
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