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| Presentation | 2008-12-19 15:30 Study on Point-converging Aerial Ultrasonic Sound Source with Two Flexural Vibrating Circular Plates Kazuhiro Suzuki, Youichi Ito (Nihon Univ.)  US2008-70 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper studies the possible downsizing of the already developed point-converging ultrasonic sound source (20 kHz) that uses a flexural vibrating circular plate. It proposes a method of downsizing the ultrasonic sound source by using two smaller vibrating plates than the current one. This sound source consists of the two circular vibration plates (one is smaller than the other), two circular flat reflecting plates, cylindrical reflectors and a paraboloid reflector of revolution. The sound source is characterized by its size, which is smaller than any other type of sound source due to its axial symmetry, and by its output of sound wave energy, which is boosted by increasing the radiation resistance of the vibrating plate through a combination with the circular reflecting plate. We first describe the principle of sound wave convergence of this sound source and presents the results of experimental studies on the characteristics of sound wave radiation of the two flexural vibrating circular plates used for the sound source. It also discusses the characteristics of sound wave convergence of the point-converging sound source that was experimentally fabricated. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | high-intensity aerial ultrasonic waves / converging sound waves / ultrasonic sound source / flexural vibrating circular plate / vibration transmission rod / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 364, US2008-70, pp. 19-24, Dec. 2008. | |
| Paper # | US2008-70 | |
| Date of Issue | 2008-12-12 (US) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | US2008-70 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2008-12-19 - 2008-12-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | US |
| Conference Code | 2008-12-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Point-converging Aerial Ultrasonic Sound Source with Two Flexural Vibrating Circular Plates |
| Sub Title (in English) | |
| Keyword(1) | high-intensity aerial ultrasonic waves |
| Keyword(2) | converging sound waves |
| Keyword(3) | ultrasonic sound source |
| Keyword(4) | flexural vibrating circular plate |
| Keyword(5) | vibration transmission rod |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kazuhiro Suzuki |
| 1st Author's Affiliation | Nihon University (Nihon Univ.) |
| 2nd Author's Name | Youichi Ito |
| 2nd Author's Affiliation | Nihon University (Nihon Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-12-19 15:30:00 |
| Presentation Time | 30 minutes |
| Registration for | US |
| Paper # | US2008-70 |
| Volume (vol) | vol.108 |
| Number (no) | no.364 |
| Page | pp.19-24 |
| #Pages | 6 |
| Date of Issue | 2008-12-12 (US) |
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