Eddy current testing apparatus including a two coil probe having

Details Eddy current testing apparatus including a two coil probe having Eddy current testing apparatus including a two coil probe having

1980-12-03

1984-03-13

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324243, 336183, G01N 2790, G01R 3312, H01F 2728

Patent

active

044370628

ABSTRACT:
An eddy current inspection probe includes a bobbin housing a central ferrite rod. Two coils are wound around one end of the ferrite rod. The coils form two legs of a bridge circuit driven at 1.5 to 2.0 MHz. Defects are located by detecting phase shift in the bridge output.

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patent: 3586964 (1971-06-01), Strauch
patent: 3753096 (1973-08-01), Wiers
patent: 3864638 (1975-02-01), Audenard
patent: 3895290 (1975-07-01), Audenard
patent: 4078201 (1978-03-01), Buser
patent: 4088953 (1978-05-01), Sarian

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