Device for detecting defects in electrically conductive...

Details Device for detecting defects in electrically conductive... Device for detecting defects in electrically conductive...

2005-02-23

2009-02-24

Whittington, Kenneth J (Department: 2862)

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

C324S235000

Reexamination Certificate

active

07495433

ABSTRACT:
Disclosed is a device for detecting defects which are deep in electrically conductive materials in a non-destructive manner, comprising an excitation device provided with induction coils which are used to produce low frequency eddy currents in the material, and a receiving device for the magnetic field of the eddy currents, the magnetic field being modified by the defects, and the receiving device comprising a gradiometer magnetic field sensors with an integrated bridge circuit.

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