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:
Sep. 24, 2002
Filed:
Sep. 25, 2000
NSK Ltd., Tokyo, JP;
Abstract
A torque sensor includes a pair of detection coils having the impedances that change in opposite directions of each other corresponding to a torque generated in a rotation shaft. An AC voltage is applied on a bridge circuit including a pair of detection coils and a pair of resistors, a differential voltage between AC voltages that appear on both ends of the pair of detection coils is detected and sent out as the torque signal, and a failure of a circuit component of the torque detecting circuit is judged based on the phase difference between the waveform of the AC voltage applied on the bridge circuit and the waveform of the differential voltage between AC voltages that appear on both ends of the pair of detection coils.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile