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:
Apr. 26, 2011
Filed:
Dec. 15, 2005
Mark Anthony Howard, Worlington, GB;
Darran Kreit, Foxton, GB;
Mark Anthony Howard, Worlington, GB;
Darran Kreit, Foxton, GB;
Other;
Abstract
An inductive detector operable to measure relative displacement along a measurement path of a first body including an electrical intermediate device and a second body including at least three windings. At least one winding is a transmit winding and at least one other is a receive winding. The windings are arranged such that relative displacement of the two bodies causes a change in inductive coupling between at least one transmit winding and at least one receive winding. At least two windings are formed by a convoluted conductor with a first portion extending along the measurement path on a first surface of the substrate and a second portion returning back along the measurement path on an opposite second surface of the substrate. The first and second portions are connected via a connection extending between the first and second surfaces. Each convoluted conductor forms a series of loops defined between the portions on the first and second surfaces, the width of each loop varying along the measurement path and adjacent loops having opposite electromagnetic polarity. At least two windings are spaced in an axis normal to the measurement path.