Optimal sampling for fast eddy current testing inversion by utilising sensitivity data
An adaptive sampling method primarily based on simplex-mesh refinement is proposed for making a forward database that may facilitate the inverse problem answer in non-damaging testing. The resulting mesh-database is employed as a generic interpolator of the forward downside. The on the market sensitivity data are utilised for obtaining an optimal sampling with respect to the piecewise linear interpolation applied for knowledge retrieval. The ensuing database provides guaranteed quality of approximation using a comparatively few number of samples. The tactic is illustrated by a crack reconstruction drawback of eddy current testing.
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