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:
Feb. 18, 2014
Filed:
Nov. 22, 2011
Yutaka Arimura, Wako, JP;
Yasuo Shimizu, Wako, JP;
Takeshi Wakabayashi, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A magnetostrictive torque sensor includes a rotation shaft, a magnetostrictive member, and a plurality of detectors. The rotation shaft is rotationally supported. The magnetostrictive member is disposed on a surface of the rotation shaft and being deformable in accordance with a magnitude of rotation torque applied to the rotation shaft to change magnetic permeability. The plurality of detectors are disposed on a periphery of the rotation shaft. Each of the detectors is configured to detect a change in magnetic permeability of the magnetostrictive member in a form of an electrical change. The detectors are configured to detect different amounts of electrical change from one another if amounts of change in deformation are same throughout the magnetostrictive member.