Optical Detection of Transient Lamb Waves on Rough Surfaces by a Phase-Conjugate Method
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概要
- 論文の詳細を見る
A convenient method is described for optically detecting Lamb waves on rough surfaces. A pulsed YAG laser excites Lamb waves, which are detected in a noncontact manner by a Michelson interferometer with a self-pumped phase-conjugate mirror. The present method automatically corrects the wavefront distortion caused by rough surfaces and also shows a flat spectral response over large bandwidths necessary for the analysis of the dispersion relationship. To illustrate the validity of the method, experimental results are presented for two kinds of thin plates.
- 社団法人応用物理学会の論文
- 1992-07-15
著者
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NAKANO Hidetoshi
National Research Laboratory of Metrology
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NAGAI Satoshi
National Research Laboratory of Metrology
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Matsuda Yoichi
National Research Laboratory Of Metrology
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Nagai Satoshi
National Research Institute Of Fisheries And Environment Of Inland Sea
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Nakano Hidetoshi
National Metrology Institute Of Japan National Institute Of Advanced Industrial Science And Technolo
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Matsuda Yoichi
National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8563, Japan
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