| Presentation | 2005/1/20 Wave theory-analysis of focusing property of aspherical underwater acoustic lens Junichi TATENO, Takenobu TSUCHIYA, Tetsuo ANADA, Nobuyuki ENDOH, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Authors have so far inquired about the underwater acoustic lens used for underwater acoustic sonar etc. In that case it becomes important to know the characteristic of an acoustic lens. The acoustic lens was designed conventionally by Ray Tracing method like the optical lens. It however was difficult to know about the loss in a lens and the influence of the diffraction effect. There is the necessity for the wave theory-analysis which can take into account of diffraction influence. Wave theory-analysis is proposed by the two-dimensional PE method and it analyzed about the sound pressure distribution and the focal position of an acoustic lens with both concave face. The face of a lens used for simulation is a sphere, a paraboloid, and a spheroid. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Underwater Acoustic Lens / Aspherical / Sonar / Parabolic Equation Method / Numerical Analysis |
| Paper # | US2004-86 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2005/1/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Wave theory-analysis of focusing property of aspherical underwater acoustic lens |
| Sub Title (in English) | |
| Keyword(1) | Underwater Acoustic Lens |
| Keyword(2) | Aspherical |
| Keyword(3) | Sonar |
| Keyword(4) | Parabolic Equation Method |
| Keyword(5) | Numerical Analysis |
| 1st Author's Name | Junichi TATENO |
| 1st Author's Affiliation | Department of Electrical, Electronics and Information Engineering, Faculty of Engineering, Kanagawa University:High Tech Research Center, Kanagawa University() |
| 2nd Author's Name | Takenobu TSUCHIYA |
| 2nd Author's Affiliation | Department of Electrical, Electronics and Information Engineering, Faculty of Engineering, Kanagawa University:High Tech Research Center, Kanagawa University |
| 3rd Author's Name | Tetsuo ANADA |
| 3rd Author's Affiliation | Department of Electrical, Electronics and Information Engineering, Faculty of Engineering, Kanagawa University:High Tech Research Center, Kanagawa University |
| 4th Author's Name | Nobuyuki ENDOH |
| 4th Author's Affiliation | Department of Electrical, Electronics and Information Engineering, Faculty of Engineering, Kanagawa University:High Tech Research Center, Kanagawa University |
| Date | 2005/1/20 |
| Paper # | US2004-86 |
| Volume (vol) | vol.104 |
| Number (no) | 612 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |