Apparatus for magnetically detecting faults in metal bodies util

Details Apparatus for magnetically detecting faults in metal bodies util Apparatus for magnetically detecting faults in metal bodies util

1974-06-18

1976-03-16

Corcoran, Robert J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 40, G01R 3312

Patent

active

039449114

ABSTRACT:
An improved device for magnetically detecting and locating defects in metal bodies such as shafts, tubes, strips, sheets etc., in which a multiphase generator is used to generate a traveling field such as a rotating or linearly traveling field in the body being tested and in which means are provided to sense any assymetry in the resulting magnetic field resulting from eddy currents induced in the object such as to permit determining the location and nature of the fault from the electrical signals obtained.

REFERENCES:
patent: 2467306 (1949-04-01), Habig

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