Abstract
This study proposes an estimation procedure for thickness measurement of conductive material by investigating the skin effect phenomenon in eddy current non-destructive testing. Both three-dimensional numerical modelling using the finite volume method and experimental analysis are considered. Before starting this investigation, the material to be measured must be recognised in terms of its electrical conductivity, and hence this study presents also an electrical conductivity characterisation which is identified by using two methods; the first one is the four-probe-based technique while the second one is an eddy current-based technique.
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