Multifunctional torque sensor

Details Multifunctional torque sensor Multifunctional torque sensor

1993-09-24

1994-06-28

Chilcot, Jr., Richard E.

Measuring and testing

Dynamometers

Responsive to torque

73862333, G01L 300

Patent

active

053236599

ABSTRACT:
A multifunctional torque sensor comprises a torque transmission shaft, a rectangle-shaped or parallelogram-shaped magnetic material strip bonded on the surface of the torque transmission shaft so that opposite sides of the rectangle or parallelogram face each other with a gap interposed therebetween, a first coil concentrically wound around the magnetic material strip, amagnetic core disposed outside of the magnetic material strip in no contact therewith through a space, and a second coil wound around the magnetic material strip. A change in magnetic characteristic caused by a stress transmitted from the torque transmission shaft to the magnetic material strip is detected by the first coil, thereby detecting a torque. The rotation of the shaft is detected through the detection of the gap by the second coil upon rotation of the shaft. A power can be operationally determined from the detected torque and rotation.

REFERENCES:
patent: 2331934 (1943-10-01), Satterlee
patent: 2746289 (1956-05-01), Cline
patent: 3762217 (1973-10-01), Hagen
patent: 3935537 (1976-01-01), Batchelor
patent: 3978718 (1976-09-01), Schorsch
patent: 4152645 (1979-05-01), Bendler
patent: 4364278 (1982-12-01), Horter et al.
patent: 4479390 (1984-10-01), Meixner
patent: 4823617 (1989-04-01), Hase et al.

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