Torque sensor

Details Torque sensor Torque sensor

1993-08-30

1995-04-18

Raevis, Robert

Measuring and testing

Simulating operating condition

Marine

73 1C, G01M 1500

Patent

active

054068347

ABSTRACT:
In a torque sensor, an oscillating voltage from an oscillator is applied to a torque detecting coil and a temperature compensating coil, and voltages from the torque detecting coil and the temperature compensating coil are input to a differential amplifier which produces a differential-amplified voltage for detection of a torque, wherein when the oscillator has ceased producing the oscillating voltage, a prescribed voltage is applied to a circuit through which the voltage from the torque detecting coil or the temperature compensating coil is input to the differential amplifier, thereby causing the differential amplifier to output a voltage shifted outside a prescribed range and thus detecting a failure of the oscillator.

REFERENCES:
patent: 4830137 (1989-05-01), Tatemoto et al.
patent: 4984647 (1991-01-01), Morishita et al.
patent: 5039926 (1991-08-01), Morishita et al.

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