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. 23, 2003
Filed:
Aug. 31, 1999
Jiro Nakano, Okazaki, JP;
Ichiro Nagashima, Nagoya, JP;
Hisashi Oue, Aichi-ken, JP;
Takatsugu Asano, Toyohashi, JP;
Takeshi Tsukamoto, Nagoya, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
A torque sensor is provided with a coil whose inductance changes in accordance with variation in torque acting on an object. The torque is detected on the basis of the inductance of the coil. Specifically, the torque sensor includes a first oscillation circuit for detecting the inductance of the coil and for oscillating a signal having a period corresponding to the detected inductance. The period of the signal generated by the first oscillation circuit is detected by a period detection section. A torque detection section detects the torque on the basis of the period detected by the period detection section.