Detecting and processing circuitry for magnetostriction type tor

Details Detecting and processing circuitry for magnetostriction type tor Detecting and processing circuitry for magnetostriction type tor

1993-05-28

1995-05-30

Strecker, Gerard R.

Measuring and testing

Dynamometers

Responsive to torque

324209, 324225, 324233, G01L 310, G01B 724, G01R 3318

Patent

active

054192072

ABSTRACT:
A detection and processing circuitry of a magnetostriction type torque sensor is disclosed. An alternating current voltage signal Vo is generated and output from an oscillator. A shift circuit shifts a phase of the AC voltage waveform of the oscillator by 1/4 period and outputs the phase shifted voltage to a detector. The detector modulates the inverted voltage signal Va on the basis of the phase shifted voltage signal and an integrator integrates the detector output voltage in a time range from (.alpha.-.pi./2) to (.alpha.-3.pi./2). Thus, the output voltage signal Vd from the integrator indicates a resistance value of an imaginary part, i.e., inductance of the impedance of the detection coil of a magnetostrictive shaft of the torque sensor which is not dependent on the change in a temperature.

REFERENCES:
patent: 3319464 (1967-05-01), Bender
patent: 3997835 (1976-12-01), Ando et al.
patent: 4258319 (1981-03-01), Shimada et al.
patent: 5269192 (1993-12-01), Utsui et al.

Affiliated with

Also associated with

Rating

Detecting and processing circuitry for magnetostriction type tor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detecting and processing circuitry for magnetostriction type tor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detecting and processing circuitry for magnetostriction type tor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-354942