| Presentation | 2018-04-26 Measurements of acoustic power using water surface displacement induced by acoustic radiation pressure Masaya Shimomura, Hideyuki Nomura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | When sounds are impinging on the water-air boundary from water, the water surface is deformed by acoustic radiation pressure. We have proposed acoustic power measurement using water surface deformation. In this report, the relationship between the acoustic power of a focused transducer estimated by the proposed method and the sound pressure at a focal point was experimentally examined by varying sound pressure. The result showed that the estimated sound power was proportional to the square of sound pressure in a relatively low sound pressure region, however, the increase of sound pressure broke that relationship. This result suggests that the proposed method has an applicable sound pressure or power region, and the modification of the relation between water surface displacement and radiation pressure is needed for utilization of this method for high-intense ultrasound. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Acoustic radiation pressure / Acoustic power / Focused transducer |
| Paper # | US2018-7 |
| Date of Issue | 2018-04-19 (US) |
| Conference Information | |
| Committee | US |
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| Conference Date | 2018/4/26(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Minoru Kurosawa(Tokyo Inst. of Tech.) |
| Vice Chair | Nobuyuki Endoh(Kanagawa Univ.) / Shinichi Takeuchi(Toin Univ. of Yokohama) |
| Secretary | Nobuyuki Endoh(Univ. of Toyama) / Shinichi Takeuchi(Univ. of Tokyo) |
| Assistant | Takenobu Tsuchiya(Kanagawa Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Ultrasonics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurements of acoustic power using water surface displacement induced by acoustic radiation pressure |
| Sub Title (in English) | Relationship between sound pressure and measured acoustic power |
| Keyword(1) | Acoustic radiation pressure |
| Keyword(2) | Acoustic power |
| Keyword(3) | Focused transducer |
| 1st Author's Name | Masaya Shimomura |
| 1st Author's Affiliation | The University of Electro-Communications(UEC) |
| 2nd Author's Name | Hideyuki Nomura |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| Date | 2018-04-26 |
| Paper # | US2018-7 |
| Volume (vol) | vol.118 |
| Number (no) | US-14 |
| Page | pp.pp.35-39(US), |
| #Pages | 5 |
| Date of Issue | 2018-04-19 (US) |