| Presentation | 1995/9/22 Discretely-Weighted Conical Transducer for Generation of Limited Diffraction Beam Takashi KOIKE, Ken YAMADA, Kiyoshi NAKAMURA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Conical transducers with weighted velocity distribution can create Bessel-type limited-diffraction beams. We presented discretely weighted structures for conical transducers and examined their focusing properties theoretically. In this paper a discretely weighted conical transducer is fabricated and its radiation fields are examined experimentally. It is shown that an 8-element weighted conical transducer having the diameter of 25mm, apex angle of 172° operating at 3.6MHz can create sound fields that have the FWHM of 6λ-9λ over an axial range of 10mm-200mm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Limited-diffraction beam / Bessel beam / Conical transducer / Weighting, Focusing |
| Paper # | US95-50 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 1995/9/22(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) | Discretely-Weighted Conical Transducer for Generation of Limited Diffraction Beam |
| Sub Title (in English) | |
| Keyword(1) | Limited-diffraction beam |
| Keyword(2) | Bessel beam |
| Keyword(3) | Conical transducer |
| Keyword(4) | Weighting, Focusing |
| 1st Author's Name | Takashi KOIKE |
| 1st Author's Affiliation | Department of Electrical Communications, Faculty of Engineering Tohoku University() |
| 2nd Author's Name | Ken YAMADA |
| 2nd Author's Affiliation | Department of Electrical Communications, Faculty of Engineering Tohoku University |
| 3rd Author's Name | Kiyoshi NAKAMURA |
| 3rd Author's Affiliation | Department of Electrical Communications, Faculty of Engineering Tohoku University |
| Date | 1995/9/22 |
| Paper # | US95-50 |
| Volume (vol) | vol.95 |
| Number (no) | 252 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |