Magnetostriction torque sensor

Details Magnetostriction torque sensor Magnetostriction torque sensor

1984-10-05

1986-02-25

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

324209, G01L 310

Patent

active

045720053

ABSTRACT:
The magnetic head of a magnetostriction torque sensor is covered by a magnetic head holder made of a synthetic resin and supported by an outer tubular member via an elastic supporting member. The magnetic head holder is formed with bearing portions by which an axle to be measured is rotatably supported in such a way that a predetermined clearance is always kept at a constant value between the magnetic head and the axle. Therefore, even if the axle to be measured or the outer tubular member to support the magnetic head deforms or if the concentricity of the outer tubular member with respect to the axle is inferior, it is possible to stably and precisely detect the torque applied to the axle to be measured. The above-mentioned structure of the magnetostriction torque sensor can reduce the manufacturing cost and improve the productivity.

REFERENCES:
patent: 2637205 (1953-05-01), Miller
patent: 4364278 (1982-12-01), Horter et al.
patent: 4414856 (1983-11-01), Winterhoff
V. V. Budzinskii, "Measuring Stresses by the Magnetic Anisotropy Method", Meas. Tech. (USA), No. 10, Oct. 1970, pp. 1524-1527.

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