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. 28, 1994
Filed:
Sep. 24, 1993
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A multifunctional torque sensor comprises a torque transmission shaft, a rectangle-shaped or parallelogram-shaped magnetic material strip bonded on the surface of the torque transmission shaft so that opposite sides of the rectangle or parallelogram face each other with a gap interposed therebetween, a first coil concentrically wound around the magnetic material strip, amagnetic core disposed outside of the magnetic material strip in no contact therewith through a space, and a second coil wound around the magnetic material strip. A change in magnetic characteristic caused by a stress transmitted from the torque transmission shaft to the magnetic material strip is detected by the first coil, thereby detecting a torque. The rotation of the shaft is detected through the detection of the gap by the second coil upon rotation of the shaft. A power can be operationally determined from the detected torque and rotation.