A PARAMETRIC STUDY OF EDDY CURRENT RESPONSE FOR PROBABILITY OF DETECTION ESTIMATION

In the study reported here, historical Probability of Detection (POD) data for eddy current inspections were analyzed using an extension of the “a‐hat versus a” model in order to better account for known crack variables and thereby better separate system and crack factors influencing the POD parameters. Intriguing insights have been gained in the process suggesting a simple model for POD estimation. The parametric model will be presented including results of the study and suggestions for further research.