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EP2657648A2 MEMS Gyroscopes with Reduced Errors 有权
MEMS-Gyroskope mit reduzierten Fehlern

MEMS Gyroscopes with Reduced Errors
摘要:
In comb drive vibratory gyroscopes, drive-induced Coriolis accelerometer offset is effectively canceled by demodulating the output during equal times of in-phase (+) and anti-phase (-) drive of the shuttle with respect to the velocity signal used for angular rate demodulation. This reduces or eliminates the corresponding thermal and die-stress effects otherwise needing calibration.
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