Abstract
In this paper we present a numerical simulation of an eddy current transducer with orthogonal coils. The investigation develops a 3D numerical analysis based on the magnetic scalar and vector potentials. In order to test the accuracy of our numerical analysis we used both the standard finite element method and the hierarchical finite element method of high order. It is found that the image from the transducer when it passes over a discontinuity is in excellent agreement with 3D theoretical predictions.This numerical modelling approach is very useful in analyzing and optimizing transducers with orthogonal coils.
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