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. 22, 2007
Filed:
Jun. 25, 2003
Thaddeus Schroeder, Rochester Hills, MI (US);
Jose Alberto Guerra, Chih, MX;
Joseph Pierre Heremans, Troy, MI (US);
Dale L. Partin, Ray Township, MI (US);
Thaddeus Schroeder, Rochester Hills, MI (US);
Jose Alberto Guerra, Chih, MX;
Joseph Pierre Heremans, Troy, MI (US);
Dale L. Partin, Ray Township, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A sensor apparatus and method that can measure either a linear position or an angular position of a device. A linear array of galvanomagnetic sensing elements is fixedly mountable adjacent the device. A target is connectable to the device such that the target moves adjacent a surface of the linear array in response to movement of the device and is shaped so that a magnetic flux density curve resulting from excitation of the sensing elements includes a peak and/or a valley. A first circuit excites each of the sensing elements, and a second circuit measures a magnetic flux density value at each of the sensing elements. A maximum and/or a minimum of the flux density curve indicates the position of the device.