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. 04, 2004
Filed:
Jul. 12, 2002
Gary W. Johnson, Huntington, IN (US);
Stanley J. Domanski, Huntington, IN (US);
Wabash Technologies, Inc., Huntington, IN (US);
Abstract
A non-contacting magnetic position sensor that produces a magnetic field having improved linear characteristics over an extended sensing range. The magnetic position sensor includes a pair of magnets, a pair of pole pieces extending between the magnets and spaced apart to define an air gap, and a magnetic flux sensor operable to sense varying magnitudes of magnetic flux density along the length of the air gap. The pole piece segments form a stepped interface with each of the magnets and cooperate with the magnets to provide a magnetic field having a magnetic flux density that varies in a substantially linear manner along substantially the entire length of the air gap. The magnetic flux sensor is positioned within the magnetic field and is operable to sense a magnitude of the varying magnetic flux density along the air gap and to provide an output signal representative of a position of the magnetic flux sensor relative to the magnetic field.