抄録
We studied a detection and identification method for cracks and defects, using eddy current testing (ECT). To use impulse excitation, we performed numerical analysis by the boundary element method (BEM) with Laplace transforms. The shapes of cracks and defects are obtained directly from the BEM integral equation. We applied the singular value decomposition (SVD) and regularization method to the matrix for the unknown variables to obtain proper crack shapes.
