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:
Feb. 07, 2006
Filed:
Dec. 06, 2002
Bruno Patrice Bernard Lequesne, Troy, MI (US);
Donald T. Morelli, White Lake, MI (US);
Thaddeus Schroeder, Rochester Hills, MI (US);
Thomas Wolfgang Nehl, Shelby Township, MI (US);
Thomas Allen Baudendistel, Farmersville, OH (US);
Bruno Patrice Bernard Lequesne, Troy, MI (US);
Donald T. Morelli, White Lake, MI (US);
Thaddeus Schroeder, Rochester Hills, MI (US);
Thomas Wolfgang Nehl, Shelby Township, MI (US);
Thomas Allen Baudendistel, Farmersville, OH (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A magnetostrictive force sensor universally usable in any environment with similar signals unaffected by the surrounding material. To this end, a sensor comprising a shaft of magnetostrictive material with an inductance coil wound around the shaft is provided with a magnetic shell enclosing the coil only or both the coil and the shaft. Upon application of the magnetic field, the resultant flow of magnetic flux is confined to a path through the shaft and the magnetic shell. By confining the magnetic flux path, the dependency of the sensor signal on the surrounding material and environment is essentially eliminated.