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:
May. 09, 1995
Filed:
Feb. 26, 1993
Erik B Vigmostad, Fairfield, IA (US);
Robert D Klauber, Fairfield, IA (US);
Sensorteck L.P., Fairfield, IA (US);
Abstract
A device for monitoring both position and torque variations in a torque carrying member such as a shaft or flywheel functions by using a magnetostrictive torque sensor to monitor both torque variations and rotational position. The torque carrying member is structured with cutouts, protuberances, or material variations which cause the path reluctance for the flux produced by the magnetostrictive sensor to be different for different rotational positions of the shaft. This manifests as an output signal variation in the sensor which is dependent on position, and which can be used in conjunction with the magnetostrictively induced variations in signal to permit monitoring of both torque and position. The device is suitable for use with automotive engines and provides cost and space savings.