Laser-generated ultrasound for measuring mechanical properties of materials

XinGeng Zhou; Cunfu He

doi:10.1117/12.253054

3 October 1996 Laser-generated ultrasound for measuring mechanical properties of materials

XinGeng Zhou, Cunfu He

Proceedings Volume 2899, Automated Optical Inspection for Industry; (1996) https://doi.org/10.1117/12.253054
Event: Photonics China '96, 1996, Beijing, China

Abstract

A new non-contact method for determination of elastic constants with laser ultrasonic waves is presented. A confocal Fabry-Perot interferometer and whole non-contact measure system have been developed for detecting laser- generated ultrasound on rough surfaces. The elastic constants are determined by measured velocities of longitudinal and Rayleigh wave. The experimental results demonstrate that laser ultrasonic techniques are practical and effective.

Citation Download Citation

XinGeng Zhou and Cunfu He "Laser-generated ultrasound for measuring mechanical properties of materials", Proc. SPIE 2899, Automated Optical Inspection for Industry, (3 October 1996); https://doi.org/10.1117/12.253054

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