Open AccessSkin effect based technique in eddy current non‐destructive testing for thickness measurement of conductive material
Author(s) -
Lakhdari Ala Eddine,
Cheriet Ahmed,
ElGhoul Islam Nacereddine
Publication year - 2019
Publication title -
iet science, measurement and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 49
eISSN - 1751-8830
pISSN - 1751-8822
DOI - 10.1049/iet-smt.2018.5322
Subject(s) - eddy current , electrical conductor , skin effect , eddy current testing , materials science , conductivity , nondestructive testing , electrical resistivity and conductivity , current (fluid) , acoustics , mechanics , composite material , electrical engineering , engineering , physics , quantum mechanics
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.