Laser ultrasonic techniques for nondestructive testing

XinGeng Zhou; Cunfu He

doi:10.1117/12.269812

20 March 1997 Laser ultrasonic techniques for nondestructive testing

XinGeng Zhou, Cunfu He

Proceedings Volume 2921, International Conference on Experimental Mechanics: Advances and Applications; (1997) https://doi.org/10.1117/12.269812
Event: International Conference on Experimental Mechanics: Advances and Applications, 1996, Singapore, Singapore

Abstract

A laser ultrasonic generation and non-contact detection system has been developed. The weak generated ultrasonic signal of nanosecond duration and nanometer amplitude can be detected with a confocal Fabry-Perot interferometer (CFPI). It can be applied to determination of elastic constants of material and flaw detection. The experimental results show that laser ultrasonic technique is practical and effective.

Citation Download Citation

XinGeng Zhou and Cunfu He "Laser ultrasonic techniques for nondestructive testing", Proc. SPIE 2921, International Conference on Experimental Mechanics: Advances and Applications, (20 March 1997); https://doi.org/10.1117/12.269812

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