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. 09, 1986
Filed:
Jun. 17, 1985
Paul W Morgan, Waterford Township, Oakland County, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
An improved rotary transducer (60) featuring a rotary member (2) rotatably mounted in a housing (4). Member (2) is preferably provided with a section (8) adapted to enhance measurement of stresses or other parameters of interest imposed upon member (2) under operating conditions preferably by means of one or more strain gages (32) forming one or more legs of a wheatstone bridge preferably mounted on member (2). Excitation voltage for the wheatstone bridge and/or the output voltage therefrom is delivered across an electromagnetic field between a magnetic stator member (16) fixed to housing (4) and a rotor member (18) secured to member (2). Stator member (16) comprises two magnetic stator members (34, 34') having respective asymmetrical facing surface portions adapted such that selective rotation of one relative to the other changes the configuration of an air gap therebetween within which rotor member 18 rotates and thereby changes the electrical reluctance of the magnetic coupling field between rotor member 18 and stator members (34, 34' ) to provide control over the magnetic coupling field and the excitation voltage or signal being transferred thereacross.