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. 30, 2015
Filed:
Jan. 24, 2012
Applicant:
Jan F. Herbst, Grosse Pointe Woods, MI (US);
Inventor:
Jan F. Herbst, Grosse Pointe Woods, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 3/00 (2006.01); H01L 41/12 (2006.01); G01L 5/22 (2006.01); G01L 3/10 (2006.01);
U.S. Cl.
CPC ...
H01L 41/125 (2013.01); G01L 5/221 (2013.01); G01L 3/102 (2013.01);
Abstract
A system and method for sensing torque and angular position of a rotating shaft may include a shaft with a magnetostrictive ring affixed to the shaft. The magnetostrictive ring may generate position-dependent magnetic fields relative to the shaft's rotation. A first sensor may measure a magnetic field that varies with angular position. A second sensor may measure a magnetic field that varies with torque.