Patent ID: 6253613
Filing Date: 2001-07-03
Classification: G01C

Abstract:
A tuning-fork vibratory gyro having first and second arms and a base integrally connected to the first and second arms, said tuning-fork vibratory gyro comprising:drive electrodes used to generate tuning-fork vibrations due to a piezoelectric transversal effect; anddetection electrodes provided on the first and second arms and used to output a detection voltage due to an angular velocity, wherein the first and second arms and the base are integrally formed of a piezoelectric single crystal, and wherein the detection electrodes are provided on at least two surfaces of each of the first and second arms, and wherein the drive electrodes having respective portions provided on two opposing surfaces of the base on an inner portion of the first and second arms and the detection electrodes disposed on outer portions of said first and second arms.