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An eddy-current model for three-dimensional inversion

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2 Author(s)
Sabbagh, H. ; Sabbagh Associates, Inc., Bloomington, IN, USA ; Sabbagh, L.

A model is presented for the inversion of eddy-current data to be used for the detection of flaws. This model is based on rigorous electromagnetic theory and uses a multifrequency approach to make it truly three-dimensional. The resulting integral equations are discretized and solved using least squares techniques. The numerical problems involved in this algorithm are discussed, and a solution as well as examples of reconstructions of computer-generated flaws are presented.

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Magnetics, IEEE Transactions on  (Volume:22 ,  Issue: 4 )