TERMIUM Plus®
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PIVOT RING [3 records]
Record 1 - internal organization data 2002-07-16
Record 1, English
Record 1, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 1, Main entry term, English
- gyro housing
1, record 1, English, gyro%20housing
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- sealed housing 2, record 1, English, sealed%20housing
correct
- sealed gyro housing 3, record 1, English, sealed%20gyro%20housing
correct
- gyroscope housing 4, record 1, English, gyroscope%20housing
correct
- housing 2, record 1, English, housing
correct
Record 1, Textual support, English
Record number: 1, 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 1, English, - gyro%20housing
Record number: 1, 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 1, English, - gyro%20housing
Record 1, Key term(s)
- sealed gyroscope housing
Record 1, French
Record 1, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 1, Main entry term, French
- carter
1, record 1, French, carter
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- caisse du gyroscope 2, record 1, French, caisse%20du%20gyroscope
correct, feminine noun
- carter du gyroscope 2, record 1, French, carter%20du%20gyroscope
correct, masculine noun
- carter étanche 3, record 1, French, carter%20%C3%A9tanche
correct, masculine noun
- élément sensible 4, record 1, French, %C3%A9l%C3%A9ment%20sensible
correct, masculine noun
- cage de gyroscope 5, record 1, French, cage%20de%20gyroscope
correct, feminine noun
- cage 6, record 1, French, cage
correct, feminine noun
- solide 7, record 1, French, solide
masculine noun
Record 1, Textual support, French
Record number: 1, 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 1, French, - carter
Record number: 1, 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 1, French, - carter
Record number: 1, 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 1, French, - carter
Record number: 1, Textual support number: 1 OBS
Ne pas confondre avec le boîtier. 11, record 1, French, - carter
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2001-09-04
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
- principle of precession
1, record 2, English, principle%20of%20precession
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- gyroscopic precession principle 2, record 2, English, gyroscopic%20precession%20principle
correct
- law of precession 3, record 2, English, law%20of%20precession
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Gyroscopic Precession Principle: When a force is applied to a spinning gyro, the maximum reaction occurs 90° later in the direction of rotation. 2, record 2, English, - principle%20of%20precession
Record number: 2, Textual support number: 2 CONT
Precision Gyroscope. For demonstration of gyroscopic stabilization, gyrocompass, inertial guidance, principle of precession, etc. Dynamically-balanced, metallic rotor disc is mounted on a gimbal ring with cone bearings. Included are a plastic base with pivot cradle, and a second base with gimbal cradle. Cord included for rotating the rotor disc. With instructions. 4, record 2, English, - principle%20of%20precession
Record 2, Key term(s)
- precession law
- precession principle
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
- loi de précession
1, record 2, French, loi%20de%20pr%C3%A9cession
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- principe de la précession 2, record 2, French, principe%20de%20la%20pr%C3%A9cession
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
L'indicateur de virage est un gyromètre utilisant la loi de précession d'un gyroscope à un degré de liberté. Il indique le taux et le sens de virage. 1, record 2, French, - loi%20de%20pr%C3%A9cession
Record number: 2, Textual support number: 2 CONT
Principe de la précession. La précession est le mouvement conique, séculaire que décrit l'axe des pôles terrestre. 2, record 2, French, - loi%20de%20pr%C3%A9cession
Record 2, Key term(s)
- loi de précession d'un gyroscope
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2001-06-21
Record 3, English
Record 3, Subject field(s)
- Suspension (Mechanical Components)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 3, Main entry term, English
- outer gimbal
1, record 3, English, outer%20gimbal
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- outer gimbal ring 2, record 3, English, outer%20gimbal%20ring
correct
- outer ring 3, record 3, English, outer%20ring
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
A conventional gyroscope is a mechanism comprising a rotor journaled to spin about one axis, the journals of the rotor being mounted in an inner gimbal or ring, the inner gimbal being journaled for oscillation in an outer gimbal which in turn is journaled for oscillation relative to a support. The outer gimbal or ring is mounted so as to pivot about an axis in its own plane determined by the support. Hence the outer gimbal possesses one degree of rotational freedom and its axis possesses none. The inner gimbal is mounted in the outer gimbal so as to pivot about an axis in its own plane which axis is always normal to the pivotal axis of the outer gimbal. Hence the inner gimbal possesses two degrees of rotational freedom and its axis possesses one. 3, record 3, English, - outer%20gimbal
Record 3, French
Record 3, Domaine(s)
- Suspension (Composants mécaniques)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 3, Main entry term, French
- cardan extérieur
1, record 3, French, cardan%20ext%C3%A9rieur
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- anneau de cardan extérieur 2, record 3, French, anneau%20de%20cardan%20ext%C3%A9rieur
correct, masculine noun
- anneau extérieur 2, record 3, French, anneau%20ext%C3%A9rieur
correct, masculine noun
- cardan externe 3, record 3, French, cardan%20externe
correct, masculine noun
- armature externe 4, record 3, French, armature%20externe
feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
[Les] anneaux de cardan constituent les supports du rotor d'un instrument gyroscopique. On les appelle plus simplement «cardans», car ces supports sont rarement circulaires. La figure 1 illustre un rotor monté sur deux anneaux de cardan, le cardan extérieur étant retenu par un cadre fixe. [...] L'arbre du rotor s'appuie sur des paliers montés dans le cardan intérieur. Ce cardan intérieur repose lui-même sur des paliers montés à l'intérieur du cardan extérieur qui, lui, peut pivoter sur les paliers du cadre fixe (ou du boîtier de l'instrument). 2, record 3, French, - cardan%20ext%C3%A9rieur
Record 3, Spanish
Record 3, Textual support, Spanish
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