Device for non-destructive testing by eddy currents comprising a

Details Device for non-destructive testing by eddy currents comprising a Device for non-destructive testing by eddy currents comprising a

1982-03-23

1984-12-11

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

With compensation for test variable

324241, 324242, 324243, G01N 2772, G01N 2782, G01R 3312

Patent

active

044881142

ABSTRACT:
Process and device for non-destructive testing or inspection by eddy currents with correction of the air gap effects. A differential measurement and an absolute measurement are performed and the result of the former is divided by that of the latter, which supplies a signal with respect to which the effects of the air gap separating the probe from the member to be inspected are corrected. Application to the inspection and testing of metal members.

REFERENCES:
patent: 4079312 (1978-03-01), Osborn et al.
patent: 4109201 (1978-08-01), Pigeon et al.

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