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. 22, 2008
Filed:
Feb. 21, 2006
Jonathan Craig Tapson, Cape Town, ZA;
Jonathan Craig Tapson, Cape Town, ZA;
University of Cape Town, Cape Town, ZA;
Abstract
A position sensor comprising a primary winding () for generating a magnetic flux, a first secondary winding () the number of turns of which increases in one direction, a second secondary winding () the number of turns of which increases in the opposite direction to that of the first secondary winding. Both secondary windings () are subjected to the magnetic flux generated by the primary winding () whereby voltages are induced in the secondary windings. The sensor further comprises an element movable with respect to the secondary windings. The element is of a magnetic or conductive material and distorts, in its vicinity, the magnetic flux generated by the primary winding (). By providing third and fourth secondary windings at right angles to the first and secondary windings it is possible to detect position in two dimensions.