Torque sensor

Details Torque sensor Torque sensor

1987-02-26

1989-04-04

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

73DIG2, G01L 310

Patent

active

048174440

ABSTRACT:
A torque sensor comprising a magnetic member whose magnetostrictive characteristics vary with the amount of torque applied thereto and coils for detecting magnetostrictive variation disposed opposite the magnetic member, and a method of manufacturing the same. The torque sensor is constituted as an independent unit separate from the shaft whose torque is to be measured. The independent unit consists of a cylindrical member having the magnetic member attached thereto and an enclosure member which is provided with the coils and is mounted so as to cover the cylindrical member and be rotatable about the same axis as the cylindrical member. The method of manufacturing the torque member comprises the steps of first copper plating and then solder plating a torque transmission member and a magnetic member destined to be attached to the outer circumference of the torque transmission member, and solder-bonding the torque transmission member and the magnetic member by heating them while uniform pressure is being applied to the entirety of the wrapped region.

REFERENCES:
patent: 2392293 (1946-01-01), Ruge
patent: 2566566 (1951-09-01), Howes
patent: 4135391 (1979-01-01), Dahl
patent: 4364278 (1982-12-01), Horter et al.
patent: 4414856 (1983-11-01), Winterhoff
patent: 4616512 (1986-10-01), Himmelstein et al.

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