Simulation study of orthogonal eddy current excitation technique for detection of multi-orientation slit
Identifying crack propagation direction and depth is crucial for steel structure safety. This study explores an orthogonal eddy current excitation technique for detecting multi-orientation slits in mild steels. Using 3-D finite element (FE) simulation, the normal magnetic response Bz distributio...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IEEE
2024
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/44383/ http://umpir.ump.edu.my/id/eprint/44383/1/2024%20Simulation%20Study%20of%20Orthogonal%20Eddy%20Current%20Excitation%20Technique%20for%20Detection%20of%20Multi-O.pdf |
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| author | Mohd Mawardi, Saari Nurul A’in, Nadzri Mohd Aufa Hadi Putera, Zaini Mohd Herwan, Sulaiman Kiwa, Toshihiko |
| author_facet | Mohd Mawardi, Saari Nurul A’in, Nadzri Mohd Aufa Hadi Putera, Zaini Mohd Herwan, Sulaiman Kiwa, Toshihiko |
| author_sort | Mohd Mawardi, Saari |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Identifying crack propagation direction and depth
is crucial for steel structure safety. This study explores an
orthogonal eddy current excitation technique for detecting
multi-orientation slits in mild steels. Using 3-D finite element
(FE) simulation, the normal magnetic response Bz distribution
induced by orthogonal eddy current excitation is calculated.
Two perpendicular inductor arrays mimic orthogonal eddy
currents. Artificial vertical, horizontal, 45°, and cross slits on a
12-mm mild steel plate are modeled, and the normal magnetic response contributed by these slits is simulated. Findings show that the orthogonal eddy current excitation technique causes a change in the magnetic field distribution for all types of slits, indicating its ability to resolve any orientation of the slits. Both x- and y-differential signals exhibit similar sensitivity in detecting vertical and horizontal slits. In contrast to the real component of the differential signal, the imaginary components showed a higher normalized differential value due to slits, suggesting a higher detection sensitivity of the differential imaginary components. The orthogonal eddy current induction technique would be a preferable choice to be implemented in an ECT probe. |
| first_indexed | 2025-11-15T03:55:11Z |
| format | Conference or Workshop Item |
| id | ump-44383 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:55:11Z |
| publishDate | 2024 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-443832025-04-23T02:12:07Z http://umpir.ump.edu.my/id/eprint/44383/ Simulation study of orthogonal eddy current excitation technique for detection of multi-orientation slit Mohd Mawardi, Saari Nurul A’in, Nadzri Mohd Aufa Hadi Putera, Zaini Mohd Herwan, Sulaiman Kiwa, Toshihiko TK Electrical engineering. Electronics Nuclear engineering Identifying crack propagation direction and depth is crucial for steel structure safety. This study explores an orthogonal eddy current excitation technique for detecting multi-orientation slits in mild steels. Using 3-D finite element (FE) simulation, the normal magnetic response Bz distribution induced by orthogonal eddy current excitation is calculated. Two perpendicular inductor arrays mimic orthogonal eddy currents. Artificial vertical, horizontal, 45°, and cross slits on a 12-mm mild steel plate are modeled, and the normal magnetic response contributed by these slits is simulated. Findings show that the orthogonal eddy current excitation technique causes a change in the magnetic field distribution for all types of slits, indicating its ability to resolve any orientation of the slits. Both x- and y-differential signals exhibit similar sensitivity in detecting vertical and horizontal slits. In contrast to the real component of the differential signal, the imaginary components showed a higher normalized differential value due to slits, suggesting a higher detection sensitivity of the differential imaginary components. The orthogonal eddy current induction technique would be a preferable choice to be implemented in an ECT probe. IEEE 2024 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/44383/1/2024%20Simulation%20Study%20of%20Orthogonal%20Eddy%20Current%20Excitation%20Technique%20for%20Detection%20of%20Multi-O.pdf Mohd Mawardi, Saari and Nurul A’in, Nadzri and Mohd Aufa Hadi Putera, Zaini and Mohd Herwan, Sulaiman and Kiwa, Toshihiko (2024) Simulation study of orthogonal eddy current excitation technique for detection of multi-orientation slit. In: 2024 International Conference on System Science and Engineering, ICSSE 2024 , 26 - 28 June 2024 , Hsinchu, Jepun. pp. 1-5.. ISBN 979-835035988-6 (Published) |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Mohd Mawardi, Saari Nurul A’in, Nadzri Mohd Aufa Hadi Putera, Zaini Mohd Herwan, Sulaiman Kiwa, Toshihiko Simulation study of orthogonal eddy current excitation technique for detection of multi-orientation slit |
| title | Simulation study of orthogonal eddy current excitation technique for detection of multi-orientation slit |
| title_full | Simulation study of orthogonal eddy current excitation technique for detection of multi-orientation slit |
| title_fullStr | Simulation study of orthogonal eddy current excitation technique for detection of multi-orientation slit |
| title_full_unstemmed | Simulation study of orthogonal eddy current excitation technique for detection of multi-orientation slit |
| title_short | Simulation study of orthogonal eddy current excitation technique for detection of multi-orientation slit |
| title_sort | simulation study of orthogonal eddy current excitation technique for detection of multi-orientation slit |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://umpir.ump.edu.my/id/eprint/44383/ http://umpir.ump.edu.my/id/eprint/44383/1/2024%20Simulation%20Study%20of%20Orthogonal%20Eddy%20Current%20Excitation%20Technique%20for%20Detection%20of%20Multi-O.pdf |