Torque sensor of noncontact type

Details Torque sensor of noncontact type Torque sensor of noncontact type

1984-12-17

1986-05-27

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

324209, G01L 310

Patent

active

045908079

ABSTRACT:
In a torque sensor of a noncontact type for sensing a torque applied to a shaft, a magnetic ribbon is bonded to a circumferential portion of the peripheral surface of the shaft, and a core member made of a magnetic material is arranged above the shaft surface so that its end faces are faced to the magnetic ribbon. A exciting coil and a detecting coil wound around the core so that a magnetic flux produced by the exciting coil and delivered to the detecting coil is detected by the detecting coil. The magnetic ribbon has a length L0 equal to or smaller than one half of the circumferential length Ls of the shaft 4 and satisfying an inequality given by

REFERENCES:
patent: 4279163 (1981-07-01), Takekoshi et al.
patent: 4364278 (1982-12-01), Horter et al.
patent: 4414855 (1983-11-01), Iwasaki
SAE Technical Paper Series 820206, "Noncontact Miniature Torque Sensor for Automotive Application"; W. Fleming and P. Wood (GM); Feb. 22-26, 1982.

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