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Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe

A dual-excitation uniform eddy current probe, composed of two excitation coils placed tangentially and one detection coil placed horizontally, is developed to solve the difficulties of detection rate and direction recognition of crack defect. Firstly, a probe simulation model is established using CO...

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Autores principales: Chen, Tao, Shi, Hai, Dong, Yuanhang, Lv, Cheng, Deng, Zhiyang, Song, Xiaochun, Liao, Chunhui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9696918/
https://www.ncbi.nlm.nih.gov/pubmed/36433446
http://dx.doi.org/10.3390/s22228850
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author Chen, Tao
Shi, Hai
Dong, Yuanhang
Lv, Cheng
Deng, Zhiyang
Song, Xiaochun
Liao, Chunhui
author_facet Chen, Tao
Shi, Hai
Dong, Yuanhang
Lv, Cheng
Deng, Zhiyang
Song, Xiaochun
Liao, Chunhui
author_sort Chen, Tao
collection PubMed
description A dual-excitation uniform eddy current probe, composed of two excitation coils placed tangentially and one detection coil placed horizontally, is developed to solve the difficulties of detection rate and direction recognition of crack defect. Firstly, a probe simulation model is established using COMSOL Multiphysics, and the differences of eddy current distribution between the dual-excitation probe and the traditional probe are investigated. Then, the influence of the distance between excitation coils on sensitivity and the test capability for crack defects with different depths and directions are investigated. Besides, the sensitivity of the dual-excitation probe is compared to that of the traditional probe made of the same coils. Finally, a physical probe and an experimental system are developed, and the performance of the dual-excitation probe is tested. The experimental results show that the probe developed in this paper exhibits a slightly higher sensitivity than the traditional probe for crack defects with different depths in the range of 0.5 mm–4.0 mm; the measurement accuracy of crack length is about 3.0 mm and can avoid missing detection of crack defects with different directions. In testing, the detection signal can be compensated to achieve precision measurement by identifying the angle of crack defects. This dual-excitation uniform eddy current probe can be used for precise quantification and direction identification of crack defect in eddy current testing.
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spelling pubmed-96969182022-11-26 Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe Chen, Tao Shi, Hai Dong, Yuanhang Lv, Cheng Deng, Zhiyang Song, Xiaochun Liao, Chunhui Sensors (Basel) Article A dual-excitation uniform eddy current probe, composed of two excitation coils placed tangentially and one detection coil placed horizontally, is developed to solve the difficulties of detection rate and direction recognition of crack defect. Firstly, a probe simulation model is established using COMSOL Multiphysics, and the differences of eddy current distribution between the dual-excitation probe and the traditional probe are investigated. Then, the influence of the distance between excitation coils on sensitivity and the test capability for crack defects with different depths and directions are investigated. Besides, the sensitivity of the dual-excitation probe is compared to that of the traditional probe made of the same coils. Finally, a physical probe and an experimental system are developed, and the performance of the dual-excitation probe is tested. The experimental results show that the probe developed in this paper exhibits a slightly higher sensitivity than the traditional probe for crack defects with different depths in the range of 0.5 mm–4.0 mm; the measurement accuracy of crack length is about 3.0 mm and can avoid missing detection of crack defects with different directions. In testing, the detection signal can be compensated to achieve precision measurement by identifying the angle of crack defects. This dual-excitation uniform eddy current probe can be used for precise quantification and direction identification of crack defect in eddy current testing. MDPI 2022-11-16 /pmc/articles/PMC9696918/ /pubmed/36433446 http://dx.doi.org/10.3390/s22228850 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chen, Tao
Shi, Hai
Dong, Yuanhang
Lv, Cheng
Deng, Zhiyang
Song, Xiaochun
Liao, Chunhui
Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe
title Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe
title_full Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe
title_fullStr Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe
title_full_unstemmed Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe
title_short Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe
title_sort design and performance research of a new dual-excitation uniform eddy current probe
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9696918/
https://www.ncbi.nlm.nih.gov/pubmed/36433446
http://dx.doi.org/10.3390/s22228850
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