Transient electromagnetic method for directly detecting corrosio

Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material

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324 712, G01N 2782, G01R 3312

Patent

active

048395935

ABSTRACT:
There is disclosed a method for directly detecting corrosion on the walls of conductive containers wherein a transmitting antenna induces a current into a portion of the container wall and the decay of the induced current is detected by a receiving antenna, with a record of the decay of the induced current being created. The record is interpreted to determine the presence or absence of a corrosion component, with the corrosion component being caused by the presence of corrosion products having superparamagnetic properties.

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