Tuning fork type vibration gyro

Details Tuning fork type vibration gyro Tuning fork type vibration gyro

1998-01-27

1999-12-07

Moller, Richard A.

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

G01C 1900

Patent

active

059964103

ABSTRACT:
The shape of drive electrodes and/or the shape of detection electrodes of a tuning fork type vibration gyro are made asymmetrical between the inside and outside of the arm, and between the surface and reverse face of the arm, to reduce the abnormal vibration and leaking output. The drive electrodes to be provided on the inside parts of the surface and reverse face of the first arm are formed smaller than the drive electrodes to be provided on the outside parts of the surface and reverse face thereof. The length of the detection electrode to be provided on the outside lateral face of the second arm is formed short. The drive electrodes to be provided on the surface and reverse face of the first arm are extended to the base side from the boundary position between the first arm and the base, and the detection electrodes to be provided on the surface and reverse face of the second arm are extended to the base side from the boundary position between the second arm and the base.

REFERENCES:
patent: 5329816 (1994-07-01), Soderkvist et al.
patent: 5854427 (1998-12-01), Terada et al.

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