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- Hideyuki Nomura
- The University of Electro-Communications 1-5-1, Chofugaoka, Chofu-shi 182-8585, Japan
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- Tomoo Kamakura
- The University of Electro-Communications 1-5-1, Chofugaoka, Chofu-shi 182-8585, Japan
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- Kazuhisa Matsuda
- Koganei Technical High School 6-8-9, Honmachi, Koganei-shi 184-8551, Japan
書誌事項
- 公開日
- 2002-04-01
- DOI
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- 10.1121/1.1453452
- 公開者
- Acoustical Society of America (ASA)
この論文をさがす
説明
<jats:p>A planar object can be levitated stably close to a piston sound source by making use of acoustic radiation pressure. This phenomenon is called near-field acoustic levitation [Y. Hashimoto et al., J. Acoust. Soc. Am. 100, 2057–2061 (1996)]. In the present article, the levitation distance is predicted theoretically by numerically solving basic equations in a compressible viscous fluid subject to the appropriate initial and boundary conditions. Additionally, experiments are carried out using a 19.5-kHz piston source with a 40-mm aperture and various aluminum disks of different sizes. The measured levitation distance agrees well with the theory, which is different from a conventional theory, and the levitation distance is not inversely proportional to the square root of the surface density of the levitated disk in a strict sense.</jats:p>
収録刊行物
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- The Journal of the Acoustical Society of America
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The Journal of the Acoustical Society of America 111 (4), 1578-1583, 2002-04-01
Acoustical Society of America (ASA)