Patent Number: 7,134,335

Title: Vibratory gyro piezoelectric vibrator

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.

Inventors: Koike; Masato (Toyama-ken, JP), Fujimoto; Katsumi (Toyama-ken, JP)

Assignee: Murata Manufacturing Co., Ltd.

International Classification: G01P 9/04 (20060101)

Expiration Date: 2019-11-14 0:00:00