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:
Dec. 28, 2004
Filed:
Jun. 27, 2002
Jaromir Palata, Friedrichshafen, DE;
i f m electronic GmbH, Essen, DE;
Abstract
An inductive path sensor for determining the position of the influencing element ( ) is described, with several coils ( ) arranged in succession, with one capacitor ( ), with an amplifier element ( ), with at least one changeover switch ( ) and with an evaluation unit ( ), one coil ( ) at a time and a capacitor ( ) forming an oscillating circuit, and one oscillating circuit and the amplifier element ( ) forming an oscillator ( ), the individual coils ( ) being chosen in succession by the changeover switch or switches ( ) and the evaluation unit ( ) measuring the change of impedance of the coil ( ) chosen by the changeover switch ( ) or of the oscillating circuit chosen by the changeover switch ( ) depending on the position of the influencing element ( ) relative to the respective coil ( ).