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:
Oct. 08, 2002
Filed:
Oct. 31, 2000
Hidehiko Kuroda, Yokohama, JP;
Shigeru Kanemoto, Yokohama, JP;
Michio Sato, Yokosuka, JP;
Takuhisa Kondo, Yokohama, JP;
Makoto Ochiai, Yokohama, JP;
Hitoshi Sakakida, Tokyo, JP;
Tatsuo Yamashita, Koganei, JP;
Kiyoto Oyagi, Yokohama, JP;
Shuuichi Umezawa, Tokyo, JP;
Kazuo Saito, Futtsu, JP;
Hajime Obikawa, Tokyo, JP;
Other;
Abstract
A torque measuring device including a light irradiation element for irradiating a light, and a control unit operatively connected to the irradiation element so as to branch the light into a plurality of lights as beams and control a beam diameter of the respective lights so as to irradiate the lights on a surface of a member to be measured. The torque measuring device further includes a plurality of reflectors disposed on the surface of the member to be measured so as to change reflection state of the respective lights, a plurality of detectors for detecting the changes of intensities of the respective reflected lights and generating signals thereof, and a signal processor for processing the generated signals and operating a rotation period on the basis of the generated signals thereby to calculate a torque of the member to be measured.