Por favor utiliza este link para citar o compartir este documento: http://repositoriodigital.academica.mx/jspui/handle/987654321/85711
Título: Identification of Laser - induced Lamb waves
Palabras clave: Laser based ultrasound
non-destructive testing
photoacoustic
Fecha de publicación: 31-Jul-2012
Editorial: Revista mexicana de física
Descripción: We studied experimentally the ultrasonic propagating modes produced by a laser pulse of 532 nm while impinging on an aluminum plate. The beam, shaped as a line, induced various Lamb modes whose relative power varied with the laser line length. Identification of their mode was performed by detecting the ultrasonic modes with piezoelectric detectors along a propagation direction orthogonal to the line, and using two dimensional fast Fourier transform. Good agreement is observed between theoretical and experimental dispersion curves for the first fundamental symmetric and anti-symmetric modes. Results are shown for 12 and 24 mm laser line-length at 13.6 and 16.8 ns pulse-width.
Other Identifiers: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0035-001X2007000900005
Aparece en las Colecciones:Revista Mexicana de Física

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