Position measurement using flux modulation and angle sensing
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United States of America Patent
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Nov 8, 2016
Grant Date -
Mar 13, 2014
app pub date -
Sep 13, 2012
filing date -
Sep 13, 2012
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Abstract
Systems and methods for determining a position of a movable component. One system includes a controllable source of varying magnetic flux. In a particular embodiment, the magnetic flux is directed through a magnetic sensor using a first flux concentrator and a second flux concentrator. The sensor generates a sensor signal that is provided to an electrical circuit designed to demodulate the signal. The demodulated signal is provided to a controller. The controller converts the signal and calculates the position of the second flux concentrator relative to the first flux concentrator. The controller may take a predetermined action based on the calculated position of the second flux concentrator.
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