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

Author Affiliations +

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.

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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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