Apparatus and method for inducing eddy currents in a structure f

Details Apparatus and method for inducing eddy currents in a structure f Apparatus and method for inducing eddy currents in a structure f

1995-09-07

1996-11-12

Snow, Walter E.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324235, 324238, G01N 2782, G01R 3312

Patent

active

055743684

ABSTRACT:
In order to control the direction of a magnetic field induced by a current sheet in a sheet conductor, relative to anomalies in a test sample, the current sheet is either rotated relative to the sheet conductor, by using either electrical or mechanical commutation of the current sheet, or the phases of plural independent current sheets in the sheet conductor are shifted relative to each other.

REFERENCES:
patent: 4379261 (1983-04-01), Lakin
patent: 4625167 (1986-11-01), Fitzpatrick

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