Flaw size measurement equipment using eddy currents

Details Flaw size measurement equipment using eddy currents Flaw size measurement equipment using eddy currents

1985-10-15

1988-04-19

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324227, 324238, G01N 2772, G01R 3312

Patent

active

047392614

ABSTRACT:
Equipment to measure flaws in an object using an eddy current. According to this equipment, attention is given to a relation between the amplitude of signal detected when the eddy current probe is scanning and the position of the eddy current probe, and the size of flaw is measured based upon the fact that scan distance of probe in which flaw detection signals of greater than a predetermined threshold value are obtained, is subject to change depending upon the depth of penetration of eddy current.

REFERENCES:
patent: 4628261 (1986-12-01), Huschelrath et al.

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