Electromagnetic testing (ET), as a form of nondestructive testing, is the process of inducing electric currents or magnetic fields or both inside a test object and observing the electromagnetic response.
If the test is set up properly, a defect inside the test object creates a measurable response.
The term "electromagnetic testing" is often intended to mean simply eddy-current testing (ECT).
also useful for the testing of drill pipes.
This electronics-related article is a stub.