TY - GEN
T1 - Numerical Solutions to Eddy-current Reflection Coefficient
AU - Xia, Zihan
AU - Huang, Ruochen
AU - Bai, Xue
AU - Meng, Tian
AU - Liu, Xiaofei
AU - Zhao, Qian
AU - Zhang, Zhijie
AU - Yin, Wuliang
AU - Yang, Wuqiang
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - In the analytical model of eddy-current (EC) testing, the reflection coefficient (RC) plays a crucial role in the calculation of mutual impedance and inductance. The RC describes the reflection characteristics of test pieces concerning incident electromagnetic waves and determines the phase of EC signals. Previously, the RC was computed using analytical solutions. However, obtaining it for test pieces with complex geometries proved challenging, limiting its application, e.g., in the calculation of defect signals. This study proposes a numerical solution to RC based on the second-order vector potential (SOVP). For metallic planar and cylindrical structures, the RC solution is calculated using numerical methods. In numerical simulations, the RC values obtained through the proposed method align well with analytical solutions. When compared with the finite element method (FEM) solution for coil inductance, the proposed method demonstrates fast and accurate inductance solutions for ferrite-core coils used in test pieces with defects.
AB - In the analytical model of eddy-current (EC) testing, the reflection coefficient (RC) plays a crucial role in the calculation of mutual impedance and inductance. The RC describes the reflection characteristics of test pieces concerning incident electromagnetic waves and determines the phase of EC signals. Previously, the RC was computed using analytical solutions. However, obtaining it for test pieces with complex geometries proved challenging, limiting its application, e.g., in the calculation of defect signals. This study proposes a numerical solution to RC based on the second-order vector potential (SOVP). For metallic planar and cylindrical structures, the RC solution is calculated using numerical methods. In numerical simulations, the RC values obtained through the proposed method align well with analytical solutions. When compared with the finite element method (FEM) solution for coil inductance, the proposed method demonstrates fast and accurate inductance solutions for ferrite-core coils used in test pieces with defects.
KW - analytical model
KW - eddy current testing
KW - Electromagnetic sensing
KW - numerical solution
KW - reflection coefficient
UR - https://www.scopus.com/pages/publications/85197776287
U2 - 10.1109/I2MTC60896.2024.10561136
DO - 10.1109/I2MTC60896.2024.10561136
M3 - 会议稿件
AN - SCOPUS:85197776287
T3 - Conference Record - IEEE Instrumentation and Measurement Technology Conference
BT - I2MTC 2024 - Instrumentation and Measurement Technology Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2024 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2024
Y2 - 20 May 2024 through 23 May 2024
ER -