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Implementation a hybrid MAS and SPA algorithm for broadband electromagnetic induction problems

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5 Author(s)
Shubitidze, F. ; Thayer Sch. of Eng., Dartmouth Coll., Hanover, NH, USA ; O'Neill, K. ; Shamatava, I. ; Sun, K.
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The computational complexity/efficiency of the method of auxiliary sources (MAS) is significantly reduced at high frequency (high induction number >40) for electromagnetic induction problems. At the same time the small penetration-depth approximation (SPA) is very accurate at high frequency/induction numbers. A hybrid algorithm, combining the MAS with SPA, is efficiently implemented. Numerical experiments are performed for a highly conducting and permeable sphere and a prolate spheroid under a time varying primary magnetic field. Numerical experiments demonstrate that the proposed method is able to produce very accurate results with low computational requirements.

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Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, 2002. DIPED - 2002. Proceedings of the 7th International Seminar/Workshop on

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