Eddy current probe calibration standard

Details Eddy current probe calibration standard Eddy current probe calibration standard

1981-07-27

1984-01-10

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Calibration

33178B, G01R 3500

Patent

active

044255454

ABSTRACT:
An eddy current probe calibration standard for calibrating eddy current probes and instruments utilizing calibration discs that provide a standard defect of known dimensions to produce a known repeatable signal. A plurality of round discs with different diameter holes through their centers are respectively provided to accommodate different size probes. Each disc has a defect in the wall of the hole in the form of a slot with known dimensions which will reproduce a known, repeatable signal. A flat, rectangular block which supports the discs, contains surface slots of known dimensions to produce known, repeatable signals for calibration when testing for surface defects.

REFERENCES:
patent: 2896333 (1959-07-01), Kivela
patent: 3718855 (1973-02-01), Rogel et al.

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