Comparison of Inspecting Non-Ferromagnetic and Ferromagnetic Metals Using Velocity Induced Eddy Current Probe
A velocity induced eddy current probe has been used to detect cracks in both non-ferromagnetic and ferromagnetic metals. The simulation and experimental results show that this probe can successfully detect cracks in both cases, but further investigation shows that the underlying principles for inspe...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-09-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/10/3199 |
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| author | Bo Feng Artur L. Ribeiro Tiago J. Rocha Helena G. Ramos |
| author_facet | Bo Feng Artur L. Ribeiro Tiago J. Rocha Helena G. Ramos |
| author_sort | Bo Feng |
| collection | DOAJ |
| description | A velocity induced eddy current probe has been used to detect cracks in both non-ferromagnetic and ferromagnetic metals. The simulation and experimental results show that this probe can successfully detect cracks in both cases, but further investigation shows that the underlying principles for inspecting non-ferromagnetic and ferromagnetic metals are actually different. For an aluminum plate, the induced eddy current density and the signal amplitude both increase with probe speed, which means the signal is caused by velocity induced eddy currents. For a steel plate, probe speed changes the baselines of the testing signals; however, it has little influence on signal amplitudes. Simulation results show that the signal for cracks in a steel plate is mainly caused by direct magnetic field perturbation rather than velocity induced eddy currents. |
| first_indexed | 2024-04-11T22:24:33Z |
| format | Article |
| id | doaj.art-4b162d833ce5465c811f2831d9a18c96 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:24:33Z |
| publishDate | 2018-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-4b162d833ce5465c811f2831d9a18c962022-12-22T03:59:52ZengMDPI AGSensors1424-82202018-09-011810319910.3390/s18103199s18103199Comparison of Inspecting Non-Ferromagnetic and Ferromagnetic Metals Using Velocity Induced Eddy Current ProbeBo Feng0Artur L. Ribeiro1Tiago J. Rocha2Helena G. Ramos3Instituto de Telecomunicações, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, PortugalInstituto de Telecomunicações, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, PortugalInstituto de Telecomunicações, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, PortugalInstituto de Telecomunicações, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, PortugalA velocity induced eddy current probe has been used to detect cracks in both non-ferromagnetic and ferromagnetic metals. The simulation and experimental results show that this probe can successfully detect cracks in both cases, but further investigation shows that the underlying principles for inspecting non-ferromagnetic and ferromagnetic metals are actually different. For an aluminum plate, the induced eddy current density and the signal amplitude both increase with probe speed, which means the signal is caused by velocity induced eddy currents. For a steel plate, probe speed changes the baselines of the testing signals; however, it has little influence on signal amplitudes. Simulation results show that the signal for cracks in a steel plate is mainly caused by direct magnetic field perturbation rather than velocity induced eddy currents.http://www.mdpi.com/1424-8220/18/10/3199velocity induced eddy currentnon-destructive testingvelocity effecteddy current testing |
| spellingShingle | Bo Feng Artur L. Ribeiro Tiago J. Rocha Helena G. Ramos Comparison of Inspecting Non-Ferromagnetic and Ferromagnetic Metals Using Velocity Induced Eddy Current Probe Sensors velocity induced eddy current non-destructive testing velocity effect eddy current testing |
| title | Comparison of Inspecting Non-Ferromagnetic and Ferromagnetic Metals Using Velocity Induced Eddy Current Probe |
| title_full | Comparison of Inspecting Non-Ferromagnetic and Ferromagnetic Metals Using Velocity Induced Eddy Current Probe |
| title_fullStr | Comparison of Inspecting Non-Ferromagnetic and Ferromagnetic Metals Using Velocity Induced Eddy Current Probe |
| title_full_unstemmed | Comparison of Inspecting Non-Ferromagnetic and Ferromagnetic Metals Using Velocity Induced Eddy Current Probe |
| title_short | Comparison of Inspecting Non-Ferromagnetic and Ferromagnetic Metals Using Velocity Induced Eddy Current Probe |
| title_sort | comparison of inspecting non ferromagnetic and ferromagnetic metals using velocity induced eddy current probe |
| topic | velocity induced eddy current non-destructive testing velocity effect eddy current testing |
| url | http://www.mdpi.com/1424-8220/18/10/3199 |
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