Experimental Study of the Guided Wave Directivity Patterns of Thin Removable Magnetostrictive Patches
The characteristics of removable magnetostrictive thin patches are investigated for the generation of guided waves in plates. The directivity patterns of SH, S0 and A0 modes have been measured in a thin metallic plate for different combinations of static and dynamic magnetic field directions. This u...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/24/7189 |
| _version_ | 1797544648761147392 |
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| author | Akram Zitoun Steven Dixon Graham Edwards David Hutchins |
| author_facet | Akram Zitoun Steven Dixon Graham Edwards David Hutchins |
| author_sort | Akram Zitoun |
| collection | DOAJ |
| description | The characteristics of removable magnetostrictive thin patches are investigated for the generation of guided waves in plates. The directivity patterns of SH, S0 and A0 modes have been measured in a thin metallic plate for different combinations of static and dynamic magnetic field directions. This used different coil geometries such as racetrack and spiral coils to generate the dynamic magnetic field, as well as separate biasing static magnetic fields from permanent magnets. This arrangement generated signals via both Lorentz and magnetostrictive forces, and the resultant emitted guided waves were studied for different dynamic and static magnetic field directions and magnitudes. It is demonstrated that different guided wave modes can be produced by controlling these parameters. |
| first_indexed | 2024-03-10T14:03:32Z |
| format | Article |
| id | doaj.art-f52c0aaf64b64a20b0d21d7a9e6482c7 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T14:03:32Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-f52c0aaf64b64a20b0d21d7a9e6482c72023-11-21T00:54:23ZengMDPI AGSensors1424-82202020-12-012024718910.3390/s20247189Experimental Study of the Guided Wave Directivity Patterns of Thin Removable Magnetostrictive PatchesAkram Zitoun0Steven Dixon1Graham Edwards2David Hutchins3Brunel Composites Centre, College of Engineering, Design and Physical Sciences, Brunel University London, London UB8 3PH, UKDepartment of Physics, The University of Warwick, Coventry CV4 7AL, UKMonitoring and Inspection Research, TWI Ltd., Granta Park, Cambridge CB21 6AL, UKSchool of Engineering, The University of Warwick, Coventry CV4 7AL, UKThe characteristics of removable magnetostrictive thin patches are investigated for the generation of guided waves in plates. The directivity patterns of SH, S0 and A0 modes have been measured in a thin metallic plate for different combinations of static and dynamic magnetic field directions. This used different coil geometries such as racetrack and spiral coils to generate the dynamic magnetic field, as well as separate biasing static magnetic fields from permanent magnets. This arrangement generated signals via both Lorentz and magnetostrictive forces, and the resultant emitted guided waves were studied for different dynamic and static magnetic field directions and magnitudes. It is demonstrated that different guided wave modes can be produced by controlling these parameters.https://www.mdpi.com/1424-8220/20/24/7189magnetostrictionguided wave modesLamb wavesshear horizontal waves |
| spellingShingle | Akram Zitoun Steven Dixon Graham Edwards David Hutchins Experimental Study of the Guided Wave Directivity Patterns of Thin Removable Magnetostrictive Patches Sensors magnetostriction guided wave modes Lamb waves shear horizontal waves |
| title | Experimental Study of the Guided Wave Directivity Patterns of Thin Removable Magnetostrictive Patches |
| title_full | Experimental Study of the Guided Wave Directivity Patterns of Thin Removable Magnetostrictive Patches |
| title_fullStr | Experimental Study of the Guided Wave Directivity Patterns of Thin Removable Magnetostrictive Patches |
| title_full_unstemmed | Experimental Study of the Guided Wave Directivity Patterns of Thin Removable Magnetostrictive Patches |
| title_short | Experimental Study of the Guided Wave Directivity Patterns of Thin Removable Magnetostrictive Patches |
| title_sort | experimental study of the guided wave directivity patterns of thin removable magnetostrictive patches |
| topic | magnetostriction guided wave modes Lamb waves shear horizontal waves |
| url | https://www.mdpi.com/1424-8220/20/24/7189 |
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