TY - GEN
T1 - An electromagnetic decoupling method in eddy current testing
AU - Huang, Pu
AU - Pu, Hang
AU - Huang, Xiaofei
AU - Li, Zhiying
AU - Xu, Lijun
AU - Xie, Yuedong
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Eddy current testing is an efficient nondestructive testing tool, which has been applied in pipeline transportation, aerospace, chemical industry, and so on. In fact, the response signal of eddy current testing contains both conductivity and permeability information of samples. Therefore, it is difficult to accurately measure the conductivity and permeability due to the electromagnetic coupling. In this paper, the analytical solution is established for multi-layer metal plate, and the permeability invariance phenomenon(PIP) has been found. Moreover, the numerical solution, i.e. finite element method, is also applied to verify the PIP. According to the PIP, the electromagnetic parameters decoupling (conductivity and permeability) can be realized. Based on the characteristic of PIP, the conductivity measurement method is investigated, which is not affect by permeability. Related experiments are also carried out to estimate the conductivity. The results show the error is only 5.1%, and the maximum error is 8.8%.
AB - Eddy current testing is an efficient nondestructive testing tool, which has been applied in pipeline transportation, aerospace, chemical industry, and so on. In fact, the response signal of eddy current testing contains both conductivity and permeability information of samples. Therefore, it is difficult to accurately measure the conductivity and permeability due to the electromagnetic coupling. In this paper, the analytical solution is established for multi-layer metal plate, and the permeability invariance phenomenon(PIP) has been found. Moreover, the numerical solution, i.e. finite element method, is also applied to verify the PIP. According to the PIP, the electromagnetic parameters decoupling (conductivity and permeability) can be realized. Based on the characteristic of PIP, the conductivity measurement method is investigated, which is not affect by permeability. Related experiments are also carried out to estimate the conductivity. The results show the error is only 5.1%, and the maximum error is 8.8%.
KW - Eddy current testing
KW - analytical solution
KW - conductivity measurement
KW - electromagnetic decoupling
KW - permeability invariance phenomenon
UR - https://www.scopus.com/pages/publications/85166379795
U2 - 10.1109/I2MTC53148.2023.10176103
DO - 10.1109/I2MTC53148.2023.10176103
M3 - 会议稿件
AN - SCOPUS:85166379795
T3 - Conference Record - IEEE Instrumentation and Measurement Technology Conference
BT - I2MTC 2023 - 2023 IEEE International Instrumentation and Measurement Technology Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2023
Y2 - 22 May 2023 through 25 May 2023
ER -