Torque sensor for shafts

Details Torque sensor for shafts Torque sensor for shafts

1983-02-15

1985-03-05

Rowland, James L.

Measuring and testing

Dynamometers

Responsive to torque

73DIG1, G01L 310

Patent

active

045023409

ABSTRACT:
A non-contacting torque sensor is provided for measuring the torque of stationary and slowly rotating shafts. The torque sensor employs an oscillating thin-wall cylinder to produce a signal whose frequency is directly proportional to the torque applied to a shaft. Electromagnetic coils drive the cylinder at its natural frequency and sense its motion to produce a signal that is proportional to torque. Temperature and shaft bending effects are minimized by accordion folds integrally formed at the end portions of the oscillating cylinder.

REFERENCES:
patent: 2737049 (1956-03-01), Waugh
patent: 3800591 (1974-04-01), Tveter
patent: 3813934 (1974-06-01), Meyer
patent: 3823608 (1974-07-01), Pantermuehl et al.
patent: 4099411 (1978-07-01), Woolvet et al.

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