Torque measurement device
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United States of America Patent
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Jul 18, 2023
Grant Date -
Feb 9, 2023
app pub date -
Jul 1, 2021
filing date -
Sep 16, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A torque measurement device includes a case that does not rotate even during use; a rotating shaft rotatably supported to the case and having a magnetostrictive effect part whose magnetic permeability changes according to a transmitted torque; and a magnetostrictive sensor having a detection part arranged closely adjacent to the magnetostrictive effect part so that a voltage changes according to change of the magnetic permeability of the magnetostrictive effect part, and being supported to the case; and the torque measurement device has a rotation-preventing construction configured to prevent the magnetostrictive sensor from rotating with respect to the case.
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