Position detection device for a movable element in a drive device
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United States of America Patent
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Jun 27, 2017
Grant Date -
Feb 19, 2015
app pub date -
Sep 26, 2014
filing date -
Mar 27, 2012
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Abstract
A position detection device for detecting a position of a movable element in a drive device comprises a carrier having two detecting modules for detecting a position of the movable element, the detecting modules being arranged side-by-side at a predetermined distance and without overlapping. Each detecting module comprises an energizing coil and a receiving coil assigned to the energizing coil and comprising a geometry having one period. The detecting modules are configured to output a position signal when detecting the movable element, so that during a shift of the movable element along the two detecting modules over the predefined distance this distance may be measured as a reference distance on the basis of the position signals.
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