CENTRALE INERTIELLE TRIAXIALE A PLUSIEURS TYPES DE GYROMETRES

The invention discloses an inertial navigation unit for a vehicle with reduced dynamic angular motion about a first axis among the three roll, pitch and yaw axes, comprising three gyrometers. One of the gyrometers (10) is located along a second of three axes (Ygy) and another is located along an int...

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Bibliographic Details
Main Authors BECHERET YVES, MAZZANTI FREDERIC, GUEDON JEAN YVES
Format Patent
LanguageFrench
Published 14.11.1997
Edition6
Subjects
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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Summary:The invention discloses an inertial navigation unit for a vehicle with reduced dynamic angular motion about a first axis among the three roll, pitch and yaw axes, comprising three gyrometers. One of the gyrometers (10) is located along a second of three axes (Ygy) and another is located along an intermediate direction (Xgy) between the first axis and the third axis. The third gyrometer (14), having an accuracy several orders of magnitude lower and a cost much lower than the other two, is substantially located on a plane defined by the first and the third axes (X, Z). La centrale inertielle est destinée à un véhicule ayant une dynamique de mouvement angulaire réduite autour d'un premier axe parmi les trois axes de roulis, tangage et lacet du véhicule, comprenant trois gyromètres. Deux des gyromètres (10) sont placés l'un suivant un second des trois axes (Ygy) et l'autre suivant une direction (Xgy) intermédiaire entre le premier axe et le troisième axe. Le troisième gyromètre (14), ayant une précision inférieure de plusieurs ordres de grandeur et un coût très inférieur à ceux des deux autres, est placé sensiblement dans le plan défini par le premier et le troisième axe (X,Z).
Bibliography:Application Number: FR19960005783