Eddy current testing device with a balancing digital memory

Details Eddy current testing device with a balancing digital memory Eddy current testing device with a balancing digital memory

1983-02-18

1985-12-03

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324202, 324225, G01N 2782, G01N 2787

Patent

active

045568464

ABSTRACT:
Eddy current non-destructive testing device comprising in per se known manner an exciting generator, a probe connected to the latter, means for sampling in the probe a measuring voltage, means for producing a reference voltage, a differential amplifier having a first and second input and an output, a first input receiving the measuring voltage and the second the reference voltage, digital signal processing means having an input connected to the output of the differential amplifier across an amplifier, said processing means successively comprising an analog--digital converter, a first random access memory and a digital processing circuit, wherein the means for producing a reference voltage comprise a second random access memory having an input and an output, the input being connected to the output of the first random access memory across a switching circuit and a digital--analog converter having an input connected to the output of the memory and an output connected to the second input of the differential amplifier.

REFERENCES:
patent: 3229198 (1966-01-01), Libby
patent: 3599145 (1971-08-01), Ando et al.
patent: 4207520 (1980-06-01), Flora et al.
patent: 4230987 (1980-10-01), Mordwinken
patent: 4326166 (1982-04-01), Pigeon et al.
patent: 4331920 (1982-05-01), Kalisch et al.
patent: 4460869 (1984-07-01), Buser et al.

Affiliated with

Also associated with

Rating

Eddy current testing device with a balancing digital memory does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Eddy current testing device with a balancing digital memory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eddy current testing device with a balancing digital memory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1396656