Research on the application of laser ultrasonic technique in weaponry

Lingjian Kong; Jun Xu; Yisheng Yan; Xiaofei Gu; Guifang Zhu

doi:10.1117/12.667184

23 December 2005 Research on the application of laser ultrasonic technique in weaponry

Lingjian Kong, Jun Xu, Yisheng Yan, Xiaofei Gu, Guifang Zhu

Proceedings Volume 6028, ICO20: Lasers and Laser Technologies; 60281A (2005) https://doi.org/10.1117/12.667184
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

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.

Citation Download Citation

Lingjian Kong, Jun Xu, Yisheng Yan, Xiaofei Gu, and Guifang Zhu "Research on the application of laser ultrasonic technique in weaponry", Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 60281A (23 December 2005); https://doi.org/10.1117/12.667184

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