Torque detecting apparatus

Details Torque detecting apparatus Torque detecting apparatus

1987-03-30

1988-08-09

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

G01L 310

Patent

active

047620080

ABSTRACT:
A torque detecting apparatus utilizing a magnetoelastic effect comprising one or more pairs of thin magnetic metal strips affixed to a torque-transmitting shaft subjected to torque detection and having magnetic anisotropy induced in a predetermined direction, and one or more pairs of detecting cores paired with the above one or more pairs of thin magnetic metal strips, fixed in contact with the thin magnetic metal strips, each of the cores of the one or more pairs of detecting cores having a detecting coil wound therearound, In one embodiment, the torque detecting apparatus utilizes a magnetoelastic effect of thin magnetic metal strip wherein the absolute value of saturated magnetostriction constant .lambda.s of the thin magnetic metal strip is less than 1.times.10.sup.-6.

REFERENCES:
patent: 4374665 (1983-02-01), Koon
patent: 4506554 (1985-03-01), Blomkvist et al.
patent: 4590807 (1986-05-01), Kobayashi et al.
patent: 4631796 (1986-12-01), Inomata

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