Vibratory gyro piezoelectric vibrator

Details Vibratory gyro piezoelectric vibrator Vibratory gyro piezoelectric vibrator

2006-11-14

2006-11-14

Chapman, John E. (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

C073S504160

Reexamination Certificate

active

07134335

ABSTRACT:
A vibratory gyro piezoelectric vibrator includes a vibrating body having a laminate of piezoelectric layers stacked on each other in a lamination direction, and having a length extending in the lamination direction. The vibratory gyro piezoelectric vibrator uses longitudinal piezoelectric effects of the piezoelectric layers and operates such that a first bending vibration is excited in which the vibrating body bends in a width direction of the vibrating body substantially perpendicular to the lamination direction of the piezoelectric layers, and a Coriolis force is caused in response to the first bending vibration such that a second bending vibration is excited in which the vibrating body bends in a thickness direction of the vibrating body substantially perpendicular to both of the lamination direction and the vibration direction of the first bending vibration.

REFERENCES:
patent: 5693998 (1997-12-01), Fujimoto et al.
patent: 2003/0042820 (2003-03-01), Unami et al.
patent: 08-320233 (1996-12-01), None
patent: 09-269227 (1997-10-01), None
patent: 2003-069372 (2003-03-01), None

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