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Lamb wave generation with an air-coupled piezoelectric concave array using square-wave burst excitation

Autor
Yañez, Y.; Garcia, M.; Salazar, J.; Turo, A.; Chavez-Dominguez, J. A.
Tipus d'activitat
Article en revista
Revista
NDT and E international
Data de publicació
2008-06
Volum
41
Número
4
Pàgina inicial
292
Pàgina final
299
DOI
https://doi.org/10.1016/j.ndteint.2007.10.011 Obrir en finestra nova
Resum
In this paper, an improved pulse generator is proposed to emit a low-voltage square-wave burst. This generator will be used to excite a concave piezoelectric transducer array. Unlike classical single-pulse excitation circuits, this generator is also able to generate a square-wave burst signal. The Lamb waves generated in an aluminium plate with the square-wave burst generator are compared with those obtained using a classical single-pulse generator. Also, the signal conditioning system for all t...
Paraules clau
air-coupled, burst generator, lamb waves, ultrasonic array, ultrasonic non-destructive testing
Grup de recerca
CREB - Centre de Recerca en Enginyeria Biomedica
GSS - Grup Sistemes Sensors

Participants