Eddy current measurement and analysis for the detection of grinding burns on high strength steel through chrome plating

A computer program product for detection of grinding burns on high strength steel through chrome plating that includes one or more non-transitory computer readable storage media and program instructions stored on the one or more non-transitory computer readable storage media that, when executed by one or more computer processors, cause the one or more computer processors to perform operations, comprising:

• calibrate a system;
• inject a low frequency signal into a Device Under Test (DUT);
• scan, using an eddy current (EC) probe, the DUT and receive a resulting EEC signal response;
• move the EC probe at a constant speed relative to the DUT;
• extract one or more real components and one or more imaginary components of the resulting EC signal response, and determine a position along the DUT of each of the extracted one or more real components and one or more imaginary components;
• and
• perform a phase rotation on the one or more real components and one or more imaginary components of the resulting EC signal response at each determined position along the DUT to highlight one or more effects of interest.
• extract one or more real components and one or more imaginary components of the resulting EC signal response;
• and
• perform a phase rotation on the one or more orthogonal components of the resulting EC signal response to highlight one or more effects of interest.