Method and apparatus for detecting flaws in conductive material

Details Method and apparatus for detecting flaws in conductive material Method and apparatus for detecting flaws in conductive material

1996-08-01

1998-07-07

Snow, Walter E.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324238, G01N 2782, G01R 3312

Patent

active

057774692

ABSTRACT:
The present invention uses a magnet in relative motion to a conductive material, and a coil that is stationary with respect to the magnet to measure perturbation or variation in the magnetic field in the presence of an inclusion. The magnet and coil sensor may be on the same side of the conductive material.

REFERENCES:
patent: 2519367 (1950-08-01), Gunn et al.
patent: 2970256 (1961-01-01), Sazynski et al.
patent: 3881151 (1975-04-01), Bigelow

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