Classification of artificial near-side cracks in aluminium plates using a GMR-based eddy current probe

摘要

In the present work a method for the nondestructive classification of crack s width, depth and orientation by using an asymmetrical eddy current GMR-Coil Configuration is proposed. The experimental measurements where performed along five directions in a series of artificial flat cracks with different widths and depths in aluminum. DV and DX values for each of the defects are obtained. The results show that there is a single pair DV, DX for each studied cracks width, depth and orientation. The results also reveal that it is possible to make a classification and estimation of the cracks width, depth and orientation using supervised learning models.