Strain detector

Details Strain detector Strain detector

1991-06-11

1993-12-14

Chilcot, Jr., Richard E.

Measuring and testing

Dynamometers

Responsive to torque

73862333, G01L 310

Patent

active

052691926

ABSTRACT:
A strain detector to be attached to the shafts of devices such as engines, motors, electromagnetic clutches. First and second magnetic layers are disposed on the driven shaft so as to change permeability with a mechanical strain in the shaft. First and second detecting coils are wound around the first and second magnetic layers so as to be in a noncontact state therewith. Detecting means detects outputs of the detecting coils corresponding to the change in permeability. Furthermore, the driven shaft includes a heat conductive means with conductivity which is high enough to allow a temperature of each of said magnetic layers to be uniform. The outputs of the first and second detecting coils are detected in synchronism with both positive and negative drive timings of the AC drive circuit for applying an AC voltage to each of the detecting coils and smoothed and amplified thereafter, thereby allowing two strain detection outputs to be produced.

REFERENCES:
patent: 4306462 (1981-12-01), Meixner
patent: 4765192 (1988-08-01), Hase et al.
patent: 5022275 (1991-06-01), Satoh et al.

Affiliated with

Also associated with

Rating

Strain detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Strain detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strain detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1696323