Magnetostrictive torque sensing device

Details Magnetostrictive torque sensing device Magnetostrictive torque sensing device

1996-10-29

1997-12-30

Dougherty, Elizabeth L.

Measuring and testing

Dynamometers

Responsive to torque

73862334, G02L 302

Patent

active

057032980

ABSTRACT:
A device for detecting torque applied to a rotary shaft. The device has a sensing piece made of a magnetostrictive material and opposite ends for mounting the sensing piece on the rotary shaft. A primary coil is located around the rotary shaft for supplying magnetic flux to the sensing piece. A secondary coil is located around the rotary shaft for sending an electromotive force induced by the magnetic flux of the sensing piece. The electromotive force is measured to determine the torque applied to the shaft.

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