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:
Nov. 25, 2003
Filed:
Feb. 19, 2002
Robert H. Luetzow, Highland Village, TX (US);
Wabash Technologies, Inc., Huntington, IN (US);
Abstract
A magnetic sensor is provided which includes a pair of magnets and a pair of shaped pole pieces positioned adjacent respective ones of the magnets and spaced apart to define an air gap therebetween. The magnets and the shaped pole pieces cooperate to provide a magnetic field having a magnetic flux density that varies along a length of the air gap. A magnetic flux sensor is positioned within the magnetic field to sense varying magnitudes of magnetic flux density along the length of the air gap and to generate an output signal representative of a position of the magnetic flux sensor relative to the magnetic field. In one embodiment, the air gap defines a varying width to provide varying magnitudes of magnetic flux density along the length. In another embodiment, the shaped pole pieces include portions of varying thickness to provide varying magnitudes of magnetic flux density along the length.