Design of detection system based on laser SAW

Xiancheng Feng; Cuizhi Chang

doi:10.1117/12.760008

4 January 2008 Design of detection system based on laser SAW

Xiancheng Feng, Cuizhi Chang

Proceedings Volume 6825, Lasers in Material Processing and Manufacturing III; 68251F (2008) https://doi.org/10.1117/12.760008
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

On propagation characteristic of material surface wave in laser ultrasonic, design of laser ultrasonic measure system have attracted the extensive attention and recognition. Laser ultrasonic technology is on studying material structure, characters, parameters (thickness, density, flexibility module), now as a important means and development aspect it has been used to detect whether material is scatheless. Firstly, this paper introduces Test principle of Fizeau Fiber Interferometer, and designs the measure system based on laser SAW. Finally through experiment data, this system provides high sensitivity of laser ultrasonic and also has the merits of no contacted measurement, high space resolution of laser ultrasonic, low environment demand, simple configuration, easy adjustment and high frequency response, highly adapts to laser ultrasonic measure.

Citation Download Citation

Xiancheng Feng and Cuizhi Chang "Design of detection system based on laser SAW", Proc. SPIE 6825, Lasers in Material Processing and Manufacturing III, 68251F (4 January 2008); https://doi.org/10.1117/12.760008

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