The magnetizing force of an eddy current test coil is usually designated by which letter?

In the context of eddy current testing, the magnetizing force is represented by the letter H. This notation is derived from magnetic field strength, which is a fundamental concept in electromagnetism. The magnetizing force H is an important parameter as it describes how much a material is magnetized in response to the applied magnetic field, which in turn affects the eddy currents generated within the conductive material being tested.

This relationship is crucial in eddy current testing as it influences the depth of penetration of the magnetic field, which is essential for detecting flaws or assessing material properties. Understanding the role of the magnetizing force helps technicians effectively interpret the results of an eddy current inspection and manage test parameters to achieve accurate assessments.