A New Approach to Improve the Probability of Detection of Eddy Current Inspection

Abstract

Eddy current testing is now a widely used Non Destructive Test (NDT) method for determining the size of cracks in metallic structures. The probability of detection (POD) is a key metric in assessing the effectiveness of nondestructive evaluation techniques. The POD analysis using common method is studied and modified. The eddy current sensor effective is discussed to support the proposed method. The new method is shown better result in improve the POD than the common one. The estimates of POD as a function of crack size will be valuable for future model-assisted POD study.

A Model Assisted Probability of Detection Approach for Ecndt of Hidden Defect in Aircraft Structures

“…The nondestructive evaluation techniques used for the qualification, inspection, and safety of riveted structures in the aeronautical sector are required to meet very high standards of reliability and, consequently, to provide a much higher level of performance for improved detection capability [5][6][7]. An approach based on the estimation of the probability of detection has become an indispensable tool for researchers for a good evaluation of the used nondestructive testing techniques performances.…”