Method for compensating a coriolis gyroscope quadrature bias...

Details Method for compensating a coriolis gyroscope quadrature bias... Method for compensating a coriolis gyroscope quadrature bias...

G - Physics

01

C

G01C 19/56 (2006.01)

Patent

CA 2548728

In a method for quadrature-bias compensation in a Coriolis gyro, whose resonator (1) is in the form of a coupled system comprising a first and a second linear oscillator (3, 4), the quadrature bias of the Coriolis gyro is determined. An electrostatic field is produced by variation of the mutual alignment of the two oscillators (3, 4) with respect to one another, with the alignment/strength of the electrostatic field being regulated such that the determined quadrature bias is as small as possible.

L'invention concerne un procédé de compensation de la polarisation de quadrature dans un gyroscope de Coriolis dont le résonateur (1) est conçu en tant que système couplé composé d'un premier et d'un deuxième oscillateur linéaire (3, 4). Selon l'invention, la polarisation de quadrature du gyroscope de Coriolis est déterminée. On produit ensuite un champ électrostatique destiné à modifier l'orientation mutuelle des deux oscillateurs (3, 4), l'orientation/l'intensité du champ électrostatique étant régulée de telle manière que la polarisation de quadrature déterminée soit la plus faible possible.

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