Torque sensor

Details Torque sensor Torque sensor

1988-07-14

1989-04-25

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

7386233, G01L 310

Patent

active

048236179

ABSTRACT:
A torque sensor comprising strips of an amorphous magnetic alloy fixed to the surface of a rotary shaft so as to utilize a inverse magnetostrictive effect of the amorphous magnetic alloy is operated in a state in which a predetermined amount of internal compressive strain is previously produced in the strips, so that the torque sensor can operate without any temperature-dependent change in its sensitivity and without occurrence of a hysteresis of its output.

REFERENCES:
patent: 4506554 (1985-03-01), Blomkvist et al.
patent: 4625562 (1986-12-01), Yamashita et al.
patent: 4780671 (1988-10-01), Hase et al.
Yamasaki et al., "Torque Sensors Using Wire Explosion . . . Layers", IEEE Trans. on Mag., vol. MAG-22, No. 5, Sep. 1986.

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