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:
Sep. 01, 2009
Filed:
Aug. 30, 2006
Yuriy Nikitich Pchelnikov, Cary, NC (US);
David Scott Nyce, Apex, NC (US);
Yuriy Nikitich Pchelnikov, Cary, NC (US);
David Scott Nyce, Apex, NC (US);
Other;
Abstract
An apparatus is disclosed for measuring a variable angular position of a movable part. The apparatus comprises at least two resonators formed by coupled slow-wave structures, and at least two movable targets having electrodynamic profiles, the targets also having a variable angular position. The angular position of the target is representative of the angular position of the movable part. An electromagnetic field is excited in the resonators at a frequency at which electromagnetic parameters of the resonators depend upon the position of the targets. A change in the angular position of the targets therefore causes a change in electrodynamic parameters of the resonators. The change in the electrodynamic parameters of the resonators is converted into a reading, such as an output voltage, which is indicative of the measured angular position.