Inspection device having coaxial induction and exciting coils fo

Details Inspection device having coaxial induction and exciting coils fo Inspection device having coaxial induction and exciting coils fo

1993-05-14

1995-07-11

O'Shea, Sandra L.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324228, 324239, 32420717, G01N 2782

Patent

active

054324440

ABSTRACT:
An inspection device has an exciting coil for generating an electromagnetic field and an induction coil which are integrally connected to each other a coaxial relation so as to induce mutual inductance in the induction coil by the electromagnetic field. The mutual inductance caused in the induction coil varies with a given object to be inspected which is present in the electromagnetic field. The object can be inspected by analyzing the change in inductance.

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