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:
Jun. 08, 1999
Filed:
Dec. 19, 1997
Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho, Aichi-ken, JP;
Abstract
A capacitive angle detector according to the present invention is capable of detecting a rotating angle with a high precision. The capacitive angle detector includes a first member, a second member and a third member. The first and second members have a plurality of electrodes thereon to form a plurality of capacitors. The electrodes on the first member and the electrodes on the second member are free from relative rotation and arranged opposite each other. The third member rotates relative to the first and second members in accordance with a rotating movement of a rotating body, thus changing capacitance values of the capacitors. Based on capacitance values of the capacitors, the capacitive angle detector detects a rotating angle of the rotating body. In this capacitive angle detector, the third member is made of a dielectric material or a conductive metal material. The third member is partially interposed between the electrodes arranged opposite each other.