Distributed point source method for eddy current modelling

被引：1

作者：

Huang, Pu ^{[1
]}

Huang, Xiaofei ^{[1
]}

Li, Zhiying ^{[1
]}

Xie, Yuedong ^{[1
]}

机构：

[1] Beihang Univ, Sch Instrumentat & Optoelect Engn, Key Lab Precis Optomechatron Technol, Educ Minist, Beijing, Peoples R China

来源：

NONDESTRUCTIVE TESTING AND EVALUATION | 2024年 / 39卷 / 07期

基金：

中国国家自然科学基金;

关键词：

DPSM; nondestructive testing; eddy current; sweep frequency mode; scanning defect; CURRENT PROBE; CONDUCTIVITY; DESIGN; COIL;

D O I：

10.1080/10589759.2023.2274018

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Distributed point source method (DPSM) has been gradually applied to the field of nondestructive testing (NDT). As a semi-analytical modelling technique, DPSM is extremely powerful and straightforward for solving various engineering problems, such as ultrasonic fields and electromagnetic field. In this paper, the technique is extended to model the eddy current field including sweep frequency measurement and scanning defect. The configuration of eddy current sensors consists of excitation coil and solid-state magnetic field measurement sensors such as Hall device and giant magnetoresistive sensor. Besides that, the wave propagation has been described and magnetic field created by eddy current has been calculated. The results obtained by DPSM is compared with that calculated by finite element method (FEM) in terms of accuracy and computation time, which indicates DPSM can improve calculation speed while ensuring calculation accuracy.

引用

页码：1831 / 1848

页数：18

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