Gap and displacement magnetic sensor system for scanner heads in paper machines or other systems
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United States of America Patent
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Sep 5, 2017
Grant Date -
May 5, 2016
app pub date -
Dec 22, 2014
filing date -
Nov 3, 2014
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Abstract
A gap and displacement magnetic sensor system for scanner heads in paper machines or other systems includes a multiple-sensor assembly. The multiple-sensor assembly includes multiple magnetic field orientation sensors configured to capture measurements of a magnetic field in order to identify (i) a displacement of first and second scanning sensor heads in a first direction, and (ii) a gap separation of the first and second scanning sensor heads in a second direction, and (iii) a displacement of the first and second scanning sensor heads in a third direction. At least one of the magnetic field orientation sensors is disposed offset from a centerline of the magnetic field such that an output from the at least one magnetic field orientation sensor indicates a combination of the gap separation and the displacement in either the first direction or the third direction.
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