Analysis of the Impact of Major Influencing Factors on the Waveform of the Surface Eddy Current Probe for Electroconductive Nonmagnetic Pipe Thickness

3rd All-Russian Scientific and Practical Conference on Innovations in Non-Destructive Testing

Goldshtein, A.E.^1 ; Belyankov, V.Y.^1

National Research Tomsk Polytechnic University, Tomsk, Russia^1

关键词: Comsol multiphysics;    Eddy current probes;    Electroconductive;    Electroconductivity;    Pipe thickness;    Pipe wall thickness;    Spherical shape;    Transverse displacements;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/671/1/012018/pdf
DOI  :  10.1088/1742-6596/671/1/012018

来源: IOP

【 摘 要 】

The results of computer simulation of interaction between the magnetic field of the surface eddy current probe and a conductive pipe performed in COMSOL Multiphysics were used to determine the dependences of the probe on major influencing factors: pipe wall thickness, the gap between the probe and the pipe surface, material electroconductivity, the pipe wall curvature, areas with a smooth V-shaped change in the thickness and local thinning of a spherical shape, misalignment of the probe axis relative to the pipe surface and transverse displacement of the probe axis.