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. 26, 2007
Filed:
Jan. 11, 2005
Bruno P. B. Lequesne, Troy, MI (US);
Thaddeus Schroeder, Rochester Hills, MI (US);
Donald T. Morelli, White Lake, MI (US);
Thomas A. Baudendistel, Farmersville, OH (US);
Bruno P. B. Lequesne, Troy, MI (US);
Thaddeus Schroeder, Rochester Hills, MI (US);
Donald T. Morelli, White Lake, MI (US);
Thomas A. Baudendistel, Farmersville, OH (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A sensor assembly for measuring force along an axis (F) comprises an inductance coil extending around the axis (F) for establishing a loop of magnetic flux looping axially through the coil and extending around the axis (F) to define a donut shaped ring of magnetic flux surrounding the axis (F). A core of magnetostrictive material provides a primary path for the magnetic flux in a first portion of the loop of magnetic flux and a magnetic carrier provides a return path for magnetic flux in a second portion of the loop of magnetic flux as the magnetic flux circles the coil through the core and the carrier. A first interface extends radially between the core and the carrier whereby the core and the carrier are urged together at the interface in response to a force applied parallel to the axis (F). Various embodiments or combinations of the core and carrier are illustrated in FIGS.