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author:

Xia, Zihan (Xia, Zihan.) [1] | Bai, Xue (Bai, Xue.) [2] | Huang, Ruochen (Huang, Ruochen.) [3] | Lu, Mingyang (Lu, Mingyang.) [4] | Yin, Wuliang (Yin, Wuliang.) [5]

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Abstract:

The forward model of eddy-current (EC) testing can predict the measurement signals, provided the known measurement conditions and physical properties of test pieces. In the analytical forward model, the test pieces are characterized by the reflection coefficient (RC), which describes the reflection characteristics of test pieces regarding incident electromagnetic (EM) waves and determines the phase of EC signals. The RC is calculated analytically with boundary conditions, which is sophisticated for analyzing complex geometries. In this study, the analytical model of plate and pipe testing using second-order vector potential (SOVP) is investigated. It is found that the numerical RC can be obtained from the source EM field in the air and counterparts in the presence of test pieces. In numerical simulations, the numerical RC is compared with the analytical RC for plate and pipe in a 2-D axisymmetric model. In the 3-D model, the calculated numerical RC corresponds to the dimensions of the measured plate and pipe with defects. In both 2-D and 3-D models, the phase of coil inductance from the numerical RC aligns with the finite-element solutions. It is validated that the RC is a characteristic of test pieces independent of the source field. © 2024 IEEE.

Keyword:

Eddy current testing Electromagnetic wave reflection

Community:

  • [ 1 ] [Xia, Zihan]University of Manchester, School of Electrical and Electronic Engineering, Manchester; M13 9PL, United Kingdom
  • [ 2 ] [Bai, Xue]University of Manchester, School of Electrical and Electronic Engineering, Manchester; M13 9PL, United Kingdom
  • [ 3 ] [Huang, Ruochen]Fuzhou University, College of Electrical Engineering and Automation, Fuzhou; 350108, China
  • [ 4 ] [Lu, Mingyang]Iowa State University, Center for Nondestructive Evaluation (CNDE), Ames; IA; 50011, United States
  • [ 5 ] [Yin, Wuliang]University of Manchester, School of Electrical and Electronic Engineering, Manchester; M13 9PL, United Kingdom

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Source :

IEEE Transactions on Magnetics

ISSN: 0018-9464

Year: 2024

Issue: 11

Volume: 60

2 . 1 0 0

JCR@2023

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 2

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