Generation of 100-MHz-Band Rayleigh Waves by Phase Velocity Scanning of a Laser Interference Fringe
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概要
- 論文の詳細を見る
We investigated the thermoelastic generation of Rayleigh waves in the 100 MHz frequency range using a scanning interference fringe (SIF) obtained by intersecting two laser beams with different frequencies. A long-pulse (140 ns) Q-switched Nd:YAG laser was used to generate Rayleigh waves on an aluminum specimen at various scanning velocities controlled by the intersection angle of the laser beams. It was found that the amplitude of the generated tone burst of Rayleigh waves followed a sine function dependence over the scanning velocity with a peak at the Rayleigh wave velocity. The center frequency of the tone burst followed a linear dependence. Implications of these findings in the quantitative nondestructive evaluation of microdevice components are discussed.
- 社団法人応用物理学会の論文
- 1993-05-30
著者
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NAGATA Yoshihiko
Mechanical Engineering Laboratory
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KODA Toshio
Mechanical Engineering Laboratory
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Yamanaka Kazushi
Mechanfical Engineering Laboratory
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NAGATA Yujiro
College of Science and Engineering, Aoyama Gakuin University
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Koda T
Mechanical Engineering Laboratory
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Nagata Y
College Of Science And Engineering Aoyama Gakuin University
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Nagata Yujiro
College Of Science & Engineering Aoyama Gakuin University
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Nishino H
Faculty Of Science And Engineering Aoyama Gakuin University
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NISHINO Hideo
Technical Research Institute, Toppan Printing Co., Ltd.
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TSUKAHARA Yusuke
Technical Research Institute, TOPPAN Printing Co., Ltd.
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Tsukahara Y
Technical Research Institute Toppan Printing Co. Ltd.
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Tsukahara Yusuke
Technical Research Institute Toppan Printing Co. Ltd.
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Terada Yasuhiko
Department Of Applied Physics School Of Engineering The University Of Tokyo
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