Reluctance transducer
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United States of America Patent
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Jun 30, 2020
Grant Date -
Nov 16, 2017
app pub date -
Jul 28, 2017
filing date -
Sep 11, 2012
priority date (Note) -
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Abstract
A reluctance transducer includes a soft ferromagnetic yoke and a soft ferromagnetic core element, which is movable relative to the yoke. Two permanent magnets bear the core element. The permanent magnets are arranged relative to each other and to the yoke so that the reluctance transducer has a good linear relationship between displacement and force. The reluctance transducer can be applied as stiffness compensating element. The reluctance transducer can include an electrical winding to allow its application as a magnetic bearing, an actuator or as a displacement, velocity or acceleration sensor with improved intrinsic linearity.
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