Design and Optimization of an MFL Coil Sensor Apparatus Based on Numerical Survey
In this study, we aimed to design a coil sensor prototype capable of detecting metallic area loss based on numerical simulations using the magnetic flux leakage (MFL) method. Unlike previous numerical simulation-based studies, which are only conducted to obtain the MFL itself, the main objectives of...
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| Format: | Article |
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MDPI AG
2019-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/22/4869 |
| _version_ | 1798041953206534144 |
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| author | Ali Azad Namgyu Kim |
| author_facet | Ali Azad Namgyu Kim |
| author_sort | Ali Azad |
| collection | DOAJ |
| description | In this study, we aimed to design a coil sensor prototype capable of detecting metallic area loss based on numerical simulations using the magnetic flux leakage (MFL) method. Unlike previous numerical simulation-based studies, which are only conducted to obtain the MFL itself, the main objectives of this study were (1) to acquire the induced current in the coil sensor and (2) to optimize the apparatus based on a time-dependent numerical analysis. As a result, the optimum values of parameters in magnetizing and sensing units were obtained numerically. A magnetic sensor prototype was then fabricated using the optimum parameters obtained by numerical parametric study. Finally, experimental validation tests were conducted on a solid steel rod specimen with a stepwise cross-sectional reduction flaw. It was observed that numerical simulation had approximately 91% precision compared to the experimental test. The results reveal that application of a realistic numerical simulation of an MFL coil sensor can probably provide essential information for MFL-sensor fabrication and allows for preventive measures to be taken before manufacturing failure or defect misdetection. |
| first_indexed | 2024-04-11T22:28:45Z |
| format | Article |
| id | doaj.art-cab039c426ae404ba5f0e8c95d0bc3fe |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:28:45Z |
| publishDate | 2019-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-cab039c426ae404ba5f0e8c95d0bc3fe2022-12-22T03:59:34ZengMDPI AGSensors1424-82202019-11-011922486910.3390/s19224869s19224869Design and Optimization of an MFL Coil Sensor Apparatus Based on Numerical SurveyAli Azad0Namgyu Kim1Department of Civil and Environmental Engineering, Sejong University, Seoul 05006, KoreaDepartment of Civil and Environmental Engineering, Sejong University, Seoul 05006, KoreaIn this study, we aimed to design a coil sensor prototype capable of detecting metallic area loss based on numerical simulations using the magnetic flux leakage (MFL) method. Unlike previous numerical simulation-based studies, which are only conducted to obtain the MFL itself, the main objectives of this study were (1) to acquire the induced current in the coil sensor and (2) to optimize the apparatus based on a time-dependent numerical analysis. As a result, the optimum values of parameters in magnetizing and sensing units were obtained numerically. A magnetic sensor prototype was then fabricated using the optimum parameters obtained by numerical parametric study. Finally, experimental validation tests were conducted on a solid steel rod specimen with a stepwise cross-sectional reduction flaw. It was observed that numerical simulation had approximately 91% precision compared to the experimental test. The results reveal that application of a realistic numerical simulation of an MFL coil sensor can probably provide essential information for MFL-sensor fabrication and allows for preventive measures to be taken before manufacturing failure or defect misdetection.https://www.mdpi.com/1424-8220/19/22/4869magnetic flux leakagecoil sensornumerical analysisparametric studynon-destructive test |
| spellingShingle | Ali Azad Namgyu Kim Design and Optimization of an MFL Coil Sensor Apparatus Based on Numerical Survey Sensors magnetic flux leakage coil sensor numerical analysis parametric study non-destructive test |
| title | Design and Optimization of an MFL Coil Sensor Apparatus Based on Numerical Survey |
| title_full | Design and Optimization of an MFL Coil Sensor Apparatus Based on Numerical Survey |
| title_fullStr | Design and Optimization of an MFL Coil Sensor Apparatus Based on Numerical Survey |
| title_full_unstemmed | Design and Optimization of an MFL Coil Sensor Apparatus Based on Numerical Survey |
| title_short | Design and Optimization of an MFL Coil Sensor Apparatus Based on Numerical Survey |
| title_sort | design and optimization of an mfl coil sensor apparatus based on numerical survey |
| topic | magnetic flux leakage coil sensor numerical analysis parametric study non-destructive test |
| url | https://www.mdpi.com/1424-8220/19/22/4869 |
| work_keys_str_mv | AT aliazad designandoptimizationofanmflcoilsensorapparatusbasedonnumericalsurvey AT namgyukim designandoptimizationofanmflcoilsensorapparatusbasedonnumericalsurvey |