Títol:
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Laser interferometric measurements of air-coupled lamb waves
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Autor/a:
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García Rodríguez, Mercedes; Yañez, Y.; García Hernández, Miguel J.; Salazar Soler, Jorge; Turó Peroy, Antonio; Chávez Domínguez, Juan Antonio
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Altres autors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. GSS - Grup Sistemes Sensors |
Abstract:
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In this paper, experimental measurements of the vibration pattern that results when an air-coupled A0 Lamb wave mode propagates in a plate are presented. Lamb waves are generated using an air-coupled piezoelectric transducer array. The measurements were performed in 304 stainless steel using laser interferometry. Air coupled piezoelectric
ultrasonic array transducers are a novel tool that could lead to interesting advances in the area of non-contact laminar material testing using Lamb wave’s propagation techniques, and it is interesting to know the vibration pattern in the plate. Using this system, some snapshots of the interaction of the A0 Lamb wave mode with a crack-defect in the plate are also presented. |
Abstract:
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Peer Reviewed |
Matèries:
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-Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura -Vibration transducers -Laser interferometry -Transductors -Interferometria laser |
Drets:
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Tipus de document:
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Article - Versió publicada Objecte de conferència |
Publicat per:
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American Institute of Physics (AIP)
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