Patent ID: 7216540
Filing Date: 2007-05-15
Classification: G01C

Abstract:
1. A piezoelectric vibratory gyroscope comprising: a body; a pair of exciting arms extending from the body in a first direction with a space therebetween; a non-exciting arm extending from the body in the first direction between the exciting arms; a pair of detecting arms extending in a second direction opposite to the first direction from the body with a space therebetween; a non-detecting arm extending from the body in the second direction between the detecting arms; drive-side electrodes coupled with each of the exciting arms; and detection-side electrodes coupled with each of the detecting arms, wherein the exciting arms, the non-exciting arm, the detecting arms, and the non-detecting arm each consist of a piezoelectric body; the width of the exciting arms and the width of the nonexciting arm differ; the width of the exciting arms and the width of the detecting arms differ; and the width of the exciting arms and the width of the non-detecting arm differ.