What is a common application of Eddy Current Testing?

Eddy Current Testing (ECT) is widely used for inspecting conductive materials, particularly in aerospace applications. The technique is effective in identifying cracks, corrosion, and other material defects in critical components, such as those found in aircraft structures. ECT takes advantage of the electromagnetic induction principle where alternating currents produce eddy currents in conductive materials; variations in these currents can reveal imperfections.

In the context of aircraft component inspection, ECT provides a non-destructive method to ensure structural integrity without damaging parts. This is crucial in the aerospace industry, where safety is paramount, and the ability to detect faults early can prevent catastrophic failures.

The other options, while related to inspection and testing, don't typically employ ECT or involve materials conductive enough to generate meaningful eddy currents in the same way as metals in aircraft components do.