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Proceedings Paper

Study on the detection of a cylindrical surface-breaking bore-hole reflector based on laser ultrasonic technology
Author(s): Haitao Wang; Wei Zeng; Xianming Yang; GuiYun Tian; Ruipeng Guo; Guoxing Hu; Min Wan
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Paper Abstract

In this paper, a visualization system was proposed based on ultrasound excitation from a Q-switched pulsed YAG laser. The ultrasonic wave was received by a piezoelectric transducer. The electrical time-domain signal was analyzed in the Fourier-domain in order to detect a hole-like reflector in an austenitic stainless steel specimen. At a given receiver position, a piezoelectric transducer received the ultrasonic wave signal. The electrical time-domain signal was analyzed in the Fourier-domain. The experimental research on the influence of the relative position distance between the laser excitation spot and the defect of the test specimen was conducted. The experimental results showed a significant geometrical imaging of the reflector shape with the scanned data. Therefore, a quantitative laser ultrasound visualization system was realized along with the spectral analysis. It will provide a new method of defects detection and sizing.

Paper Details

Date Published: 6 March 2015
PDF: 5 pages
Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 94460P (6 March 2015); doi: 10.1117/12.2180596
Show Author Affiliations
Haitao Wang, Nanjing Univ. of Aeronautics and Astronautics (China)
Wei Zeng, Nanjing Univ. of Aeronautics and Astronautics (China)
Xianming Yang, Yantai Furun Industrial Co., Ltd. (China)
GuiYun Tian, Nanjing Univ. of Aeronautics and Astronautics (China)
Univ. of Electronic Science and Technology of China (China)
Ruipeng Guo, Nanjing Univ. of Aeronautics and Astronautics (China)
Guoxing Hu, Nanjing Univ. of Aeronautics and Astronautics (China)
Min Wan, Nanjing Univ. of Aeronautics and Astronautics (China)


Published in SPIE Proceedings Vol. 9446:
Ninth International Symposium on Precision Engineering Measurement and Instrumentation
Junning Cui; Jiubin Tan; Xianfang Wen, Editor(s)

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