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:
Apr. 18, 1995
Filed:
Aug. 30, 1993
Manabu Taniguchi, Yamatotakada, JP;
Koyo Seiko Co., Ltd., Osaka, JP;
Abstract
In a torque sensor, an oscillating voltage from an oscillator is applied to a torque detecting coil and a temperature compensating coil, and voltages from the torque detecting coil and the temperature compensating coil are input to a differential amplifier which produces a differential-amplified voltage for detection of a torque, wherein when the oscillator has ceased producing the oscillating voltage, a prescribed voltage is applied to a circuit through which the voltage from the torque detecting coil or the temperature compensating coil is input to the differential amplifier, thereby causing the differential amplifier to output a voltage shifted outside a prescribed range and thus detecting a failure of the oscillator.