Flexure-based system for measuring torque on a shaft
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United States of America Patent
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Jun 27, 2017
Grant Date -
Jun 8, 2017
app pub date -
Dec 7, 2015
filing date -
Dec 7, 2015
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Abstract
A sensing device for detecting the amount of torque transmitted through a shaft. The device has a first and second section interconnected by a flexure arrangement to which permanent magnets are attached. Deflections of the flexures produce a repeatable and proportional change of magnetic flux which flows in a stationary annular ring that is concentrically mounted with respect to the shaft and separated from it by an air gap. The annular ring is instrumented with an array of magnetic field sensors that measure the changing magnetic flux.
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