Vibration gyro and the process of producing the same

Details Vibration gyro and the process of producing the same Vibration gyro and the process of producing the same

2007-03-12

2009-12-29

Chapman, John E (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

C029S025350

Reexamination Certificate

active

07637159

ABSTRACT:
An inclination of an inclined surface formed by working a ridge of a resonator is set to be within a predetermined angular range, whereby a leakage of vibration in the out-of-plane direction is reduced, the leakage of vibration being generated according to the detuning degree adjustment. In addition, a single laser beam is irradiated onto the ridge at an incident angle within a predetermined angular range, whereby a simple working on the inclined surface is established for the leakage vibration adjustment. A degree of the leakage vibration of the resonator is determined based on a relationship with the drift amount that is a ratio of the angular velocity change, and the inclination of the inclined surface is set to be within a predetermined angular range, thereby suppressing the drift amount.

REFERENCES:
patent: 5861705 (1999-01-01), Wakatsuki et al.
patent: 2002-243451 (2002-08-01), None
patent: 2003-156337 (2003-05-01), None
patent: 2004-93158 (2004-03-01), None
patent: 2004-294354 (2004-10-01), None

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