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:
Jan. 21, 2003
Filed:
May. 01, 2000
Michael L. Rhodes, Richfield, MN (US);
Howard B. French, Falcon Heights, MN (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Systems and methods are discussed that detect the position of an actuator. One aspect of the present invention includes a system to detect a position of an actuator. The system includes a magnetic source coupled to the actuator radiating a field, at least two sensors to generate a response based on angles of the field, and an analyzer receptive to the response to produce an enhanced position of the magnetic source. Such analysis occurs in the presence of undesired effects arising from misalignment of the at least two sensors. Another aspect of the present invention includes a method for detecting a position of an actuator. The method includes interpolating a response of at least two sensors to form a quantity. The quantity is indicative of a position of a magnetic source coupled to the actuator. The method further includes adjusting the quantity by selecting one of two compensation techniques. One compensation technique is based on maximum slopes of the response curve. Another compensation technique is based on minimum separation of a cubic fit of the response curve.