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. 18, 1985
Filed:
Sep. 02, 1983
Sarkis Barkhoudarian, Canoga Park, CA (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
A torquemeter 10 comprising a magnetostrictive element 12 which is formed in the shape of a ribbon upon the surface of the subject rotating member 14 and is capable of producing internal, avalanche Barkhausen reversals, permanent magnets 16 and 18 positioned adjacent to the subject rotating member 14 for successively triggering the avalanche Barkhausen reversals in the magnetostrictive element and for resetting the magnetostrictive element after each reversal, a pickup coil 20 for generating signals responsive to the avalanche Barkhausen reversals and a readout circuit 22 in communication with pickup coil 20 for correlating the responsive signals to an indication of the level of torque and/or power in the subject rotating member 14.