Analysis of Ultrasonic Signals Generated by Pulsed Laser Action on a Metal Plate

Yan Xing Song; Jing Wang; Qi Bo Feng; Shi Qian Chen

doi:10.4028/www.scientific.net/AMM.330.961

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 330Analysis of Ultrasonic Signals Generated by Pulsed...

Analysis of Ultrasonic Signals Generated by Pulsed Laser Action on a Metal Plate

Abstract:

An approach of detecting ultrasonic signals generated by pulsed laser is studied. The influence factors are analyzed on the received signals. Based on pulsed laser generating ultrasonic, a metal plate is used as a detected target. The ultrasonic is induced by way of combining high-power pulsed laser with optical attenuation unit, and then received by a piezoelectric ultrasonic transducer. The difference between ablation regime and thermo elasticity with different pulsed laser input parameters are compared. Moreover the ultrasonic propagation under different thickness of metal plate and the impacts of relative position of stimulating point and detection point on ultrasonic signal is researched. The validity of this method is demonstrated through these experiments and the laser input parameters are determined when in thermo elasticity.

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Periodical:

Applied Mechanics and Materials (Volume 330)

Pages:

961-966

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.330.961

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Online since:

June 2013

Authors:

Yan Xing Song, Jing Wang, Qi Bo Feng, Shi Qian Chen

Keywords:

Ablation Regime, Laser Ultrasonic, Pulse Laser, Thermo Elasticity

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