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Proceedings Paper

Research on the application of laser ultrasonic technique in weaponry
Author(s): Lingjian Kong; Jun Xu; Yisheng Yan; Xiaofei Gu; Guifang Zhu
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Paper Abstract

Laser Ultrasonics is a new branch in Ultrasonics, which is based on the generation of ultrasonic by a laser and the detection of stress wave with laser interferometer, and is an ideal combination of laser and ultrasonic for non-destructive testing. It is a noncontact, remote and precise technique for nondestructive testing of materials and products. Firstly, this paper introduces the principles of laser ultrasonic generation, and the ablation excitation theory. And then optical detection method of laser-induced ultrasonic with the confocal Fabry-Perot interferometer is introduced. Based on the principles of laser-induced ultrasonic generation and detection, the integrated structure of the laser ultrasonic induced by laser line source and detected by a confocal Fabry-Perot interferometer is presented to detect multilayer structure such as solid propellant rocket motor structures in weaponry. Considering how laser ultrasonics would be used in the field and some mostly effects to the results. The laser system, accepting its present limitations, was optimized and developed for the inspection of the multilayer structure of solid propellant rocket motor as the experimental program progressed.

Paper Details

Date Published: 23 December 2005
PDF: 7 pages
Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 60281A (23 December 2005); doi: 10.1117/12.667184
Show Author Affiliations
Lingjian Kong, Xi'an Research Institute of Hi-Tech (China)
Jun Xu, Xi'an Research Institute of Hi-Tech (China)
Xi'an Jiaotong Univ. (China)
Yisheng Yan, Xi'an Research Institute of Hi-Tech (China)
Xiaofei Gu, Xi'an Research Institute of Hi-Tech (China)
Guifang Zhu, Xi'an Research Institute of Hi-Tech (China)

Published in SPIE Proceedings Vol. 6028:
ICO20: Lasers and Laser Technologies
Y. C. Chen; Dianyuan Fan; Chunqing Gao; Shouhuan Zhou, Editor(s)

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