Study on the Characteristics of Sound Propagation in Shallow Underground by Air-Borne Sound
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概要
- 論文の詳細を見る
Recently, the importance of type-II dilatational waves generated by air-borne sound was recognized, because it is very useful in shallow underground imaging without making contact with the ground surface. To reconfirm the existence of this wave, the propagation time of air-borne sound in sand is measured using an acryl sand tank, condenser microphones and a loudspeaker. The experimental result shows the existence of this wave and the possibility of a non-contact method of shallow underground imaging.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2003-05-15
著者
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Shirakawa Takashi
Graduate School Of Agriculture The University Of Tokyo
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Nakamura Kentaro
Precision And Intelligence Lab. Tokyo Inst. Of Technol.
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Sugimoto Tsuneyoshi
Faculty Of Engineering Toin University Of Yokohama
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Moriya Masahiro
Faculty Of Engineering Toin University Of Yokohama
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Shirakawa Takashi
Graduate School of Agriculture, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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Okamura Tomohiro
Faculty of Engineering, Toin University of Yokohama, 1614 Kurogane-cho, Aoba-ku, Yokohama 225-8502, Japan
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Moriya Masahiro
Faculty of Engineering, Toin University of Yokohama, 1614 Kurogane-cho, Aoba-ku, Yokohama 225-8502, Japan
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