Linear position sensor with anti-rotation device
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United States of America Patent
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Mar 19, 2013
Grant Date -
May 27, 2010
app pub date -
Nov 20, 2009
filing date -
Nov 26, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An anti-rotation device or assembly for preventing the rotation of a magnet in a linear position sensor and eliminating the risk of undesired magnetic field measurements and incorrect sensor signal outputs. In one embodiment, the anti-rotation device is an anti-rotation plate which is fixed to the housing of the linear position sensor and a magnet carrier which includes at least one finger extending into a receptacle defined in either the edge or the body of the magnet carrier to prevent the magnet carrier from rotating relative to the plate. In another embodiment, the magnet carrier includes a key and the magnet includes a groove. The key extends into the groove for preventing the rotation of the magnet in the magnet carrier.
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