Design and Application of Eddy Current Testing Contrast Sample in Aircraft Maintenance

Eddy current testing contrast specimen is of an important basis of eddy current testing process for defect determination,and it is particularly important to know how to design the type and size of artificial defects according to the testing site and requirement.In this paper,in view of the eddy current testing project specified in the nondestructive testing manual regulations for the plane in the process of the timing detection,three kinds of eddy current testing contrast specimens were designed and applied to the test of the aircraft specific parts.