The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1999
Filed:
Dec. 05, 1996
Kazufumi Moriya, Yokohama, JP;
Abstract
An angular velocity sensor includes a movable bi-directional electrode and a fixed bi-directional electrode wherein L-shaped electrode plates of the movable bi-directional vibration-urging electrode mesh in spaced relationship with L-shaped electrode plates of the fixed bi-directional electrode. In one embodiment in response to a vibration driving signal applied between the electrodes, a vibration plate vibrates with a large amplitude in one direction parallel to the direction in which bent parts of the L-shaped electrode plates extend. If an angular velocity .OMEGA..sub.Z about the Z axis is applied to the vibration plate, the vibration plate is greatly displaced in the Y direction by Coriolis force. This displacement is detected by a displacement detecting part with high accuracy. In another embodiment, the bi-directional electrodes serve as the displacement detecting part.