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.:

US 7890272 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 15, 2011

Filed:

Jul. 13, 2006
Applicant:

Shuichi Umezawa, Tokyo, JP;

Inventor:

Shuichi Umezawa, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a torque measurement device capable of more accurately specifying positions of reflectors which are attached to a rotating body, and more accurately obtaining a torque of the rotating body. A pair of reflectors () is provided on the surface of the rotating body () and has a spacing in the axial direction, reflected light data obtained by reflection of reflection patterns in the pair of reflectors () is input and stored, a point of minimizing AIC is determined for a model of the reflected light data from the rotating body (), and existence regions of the pair of reflectors () are detected. Then, a twist amount of the rotating body () is calculated from the reflector positions specified by the detected existence regions of the pair of reflectors (), and the torque is calculated from the calculated twist amount of the rotating body.


Find Patent Forward Citations

Umezawa, Shuichi. (2011). Torque measurement device and program (U.S. Patent No. 7890272). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7890272

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