PROCEDURE AND DEVICE OF EDDY CURRENT IMAGING DEVICE FOR THE DETECTION AND THE CHARACTERISATION OF DEFECTS HIDDEN IN COMPLEX STRUCTURES

摘要

the eddy current imaging process comprises the steps of: positioning (72) in the vicinity of an area wide inspection device for measuring magnetic field of the surface.(74, 92) to generate a magnetic field exciter on the overall inspection area observation, measure (76, 84) on the surface of a magnetic field which, in the form of images.- treat (90) images.the step of generating (74, 82) is to generate a set of at least two waveforms of magnetic field measurement system; the step (76)(86) is as a set of configurations of the resulting magnetic field in the form of images, the phase of treatment (90) images in combination allows the detection of defects and.conclusion the location and type.