Defect localization by an extended laser source on a hemisphere
| Autor: | Veira Canle, Daniel, Mäkinen, Joni Mikko Kristian, Blomqvist, Richard, Gritsevich, M., Salmi, Ari, Haeggström, Edward |
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| Přispěvatelé: | Department of Physics, Materials Physics |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021) Scientific Reports Sci. Rep. |
| ISSN: | 2045-2322 |
| Popis: | The primary goal of this study is to localize a defect (cavity) in a curved geometry. Curved topologies exhibit multiple resonances and the presence of hotspots for acoustic waves. Launching acoustic waves along a specific direction e.g. by means of an extended laser source reduces the complexity of the scattering problem. We performed experiments to demonstrate the use of a laser line source and verified the experimental results in FEM simulations. In both cases, we could locate and determine the size of a pit in a steel hemisphere which allowed us to visualize the defect on a 3D model of the sample. Such an approach could benefit patients by enabling contactless inspection of acetabular cups. © 2021, The Author(s). Open access funded by University of Helsinki Library. |
| Databáze: | OpenAIRE |
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