Performance Comparison of Loop Source and Grounded-Wire Source for Shallow Refined TEM Detection
Loop-source transient electromagnetic method (TEM) and grounded-wire-source TEM are two of the most popular methods in geological electromagnetic detection. Advances in power electronics have made it possible to achieve high magnetic moments by transmitting large current pulses through small excitat...
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| Format: | Article |
| Language: | English |
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IEEE
2025-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10835096/ |
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| author | Zhengyu Xu Guofeng Zhao Jiangying Peng Xiao Ma Wei Liu |
| author_facet | Zhengyu Xu Guofeng Zhao Jiangying Peng Xiao Ma Wei Liu |
| author_sort | Zhengyu Xu |
| collection | DOAJ |
| description | Loop-source transient electromagnetic method (TEM) and grounded-wire-source TEM are two of the most popular methods in geological electromagnetic detection. Advances in power electronics have made it possible to achieve high magnetic moments by transmitting large current pulses through small excitation coils, enabling the use of independent loop sources as magnetic dipoles in active detection techniques. The independent loop source, by overcoming the attenuation of the magnetic field caused by distance, becomes an efficient and low-cost tool for shallow detection. Both the independent loop source and the grounded-wire source share similarities in detection principles and scanning modes. This paper discusses the merits and shortcomings of the loop source and grounded-wire source for shallow, multiscale refined detection. The three-dimensional model is established and the electromagnetic response characteristics are compared by COMSOL finite element simulation software. Additionally, the influence of anomalous burial depth, offset distance, and measurement height on the detection results of these two near-source methods are thoroughly discussed. Finally, it is explained by the field measurement results. The comparison of simulation and experimental results shows that the loop-source TEM is more suitable for shallow refined detection in terms of response quality and construction efficiency. |
| format | Article |
| id | doaj-art-65e2c0a3a5bc40789a512ecc4d3301e3 |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-65e2c0a3a5bc40789a512ecc4d3301e32025-01-21T00:02:25ZengIEEEIEEE Access2169-35362025-01-01139450946110.1109/ACCESS.2025.352787010835096Performance Comparison of Loop Source and Grounded-Wire Source for Shallow Refined TEM DetectionZhengyu Xu0https://orcid.org/0000-0001-8274-7498Guofeng Zhao1Jiangying Peng2Xiao Ma3Wei Liu4https://orcid.org/0000-0003-0319-2821School of Electrical Engineering, Chongqing University, Chongqing, ChinaGeological Exploration Technology Institute of Jiangsu Province, Nanjing, ChinaGeological Exploration Technology Institute of Jiangsu Province, Nanjing, ChinaSchool of Electrical Engineering, Chongqing University, Chongqing, ChinaChongqing Electric Power Company Electric Power Science Research Institute, Chongqing, ChinaLoop-source transient electromagnetic method (TEM) and grounded-wire-source TEM are two of the most popular methods in geological electromagnetic detection. Advances in power electronics have made it possible to achieve high magnetic moments by transmitting large current pulses through small excitation coils, enabling the use of independent loop sources as magnetic dipoles in active detection techniques. The independent loop source, by overcoming the attenuation of the magnetic field caused by distance, becomes an efficient and low-cost tool for shallow detection. Both the independent loop source and the grounded-wire source share similarities in detection principles and scanning modes. This paper discusses the merits and shortcomings of the loop source and grounded-wire source for shallow, multiscale refined detection. The three-dimensional model is established and the electromagnetic response characteristics are compared by COMSOL finite element simulation software. Additionally, the influence of anomalous burial depth, offset distance, and measurement height on the detection results of these two near-source methods are thoroughly discussed. Finally, it is explained by the field measurement results. The comparison of simulation and experimental results shows that the loop-source TEM is more suitable for shallow refined detection in terms of response quality and construction efficiency.https://ieeexplore.ieee.org/document/10835096/Transient electromagnetic methodshallow refined detectionloop sourcegrounded-wire sourceCOMSOL finite element simulation |
| spellingShingle | Zhengyu Xu Guofeng Zhao Jiangying Peng Xiao Ma Wei Liu Performance Comparison of Loop Source and Grounded-Wire Source for Shallow Refined TEM Detection IEEE Access Transient electromagnetic method shallow refined detection loop source grounded-wire source COMSOL finite element simulation |
| title | Performance Comparison of Loop Source and Grounded-Wire Source for Shallow Refined TEM Detection |
| title_full | Performance Comparison of Loop Source and Grounded-Wire Source for Shallow Refined TEM Detection |
| title_fullStr | Performance Comparison of Loop Source and Grounded-Wire Source for Shallow Refined TEM Detection |
| title_full_unstemmed | Performance Comparison of Loop Source and Grounded-Wire Source for Shallow Refined TEM Detection |
| title_short | Performance Comparison of Loop Source and Grounded-Wire Source for Shallow Refined TEM Detection |
| title_sort | performance comparison of loop source and grounded wire source for shallow refined tem detection |
| topic | Transient electromagnetic method shallow refined detection loop source grounded-wire source COMSOL finite element simulation |
| url | https://ieeexplore.ieee.org/document/10835096/ |
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