Method for testing parts, especially of nuclear plants, by means

Details Method for testing parts, especially of nuclear plants, by means Method for testing parts, especially of nuclear plants, by means

1985-03-29

1987-08-18

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324220, 324227, G01N 2790, G01R 3312

Patent

active

046879927

ABSTRACT:
Defect detection in testing pipes, particularly in heat exchangers of nuclear reactors by means of eddy current in which interference influences due to the design are suppressed by measurements with different frequencies and the frequencies interlinked to give a signal only if there is a defect indication.

REFERENCES:
patent: 2992390 (1961-07-01), De Witte
patent: 3437810 (1969-04-01), Wood et al.
patent: 4303885 (1981-12-01), Davis et al.
patent: 4325026 (1982-04-01), Cooper et al.
Davis, T. J., Advances in Multifrequency Eddy Current Instrumentation, BN-SA-946, Periodic Inspection of Pressurized Components Conf. Presentation, May, 1979, London, pp. 1-9.

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