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| Presentation | 2016-01-28 17:20 Development of Card Type Parametric Loudspeaker and Its Evaluation Ryuto Nagashima, Hideyuki Nomura, Tomoo Kamakura (UEC Tokyo)  US2015-92 EA2015-57 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This report provides acoustic and electric performances of a parametric loudspeaker with an ultrasonic emitter of 2.5 mm in thickness. Newly developed and commercially available surface-mount airborne ultrasonic transducers are used to prototype the emitter, being much smaller, thinner, and lighter than conventionally used piezoelectric ceramic transducers. The distinctive feature of the emitter generates around 40-kHz powerful ultrasonic waves even for low driving voltage. The performances the authors are focused on are on-axis acoustic pressure curves and beam patterns of the ultrasonic and parametric waves, input-output characteristics of their frequency components, and electric power consumptions. As a result, the new type ultrasonic transducers used in this study have a practical potential for realizing a thin parametric loudspeaker like a card. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Parametric loudspeaker / Directivity / Ultrasonic emitter / Power consumption / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 423, US2015-92, pp. 49-54, Jan. 2016. | |
| Paper # | US2015-92 | |
| Date of Issue | 2016-01-21 (US, EA) | |
| 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 | US2015-92 EA2015-57 |
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| Conference Information | |
| Committee | US EA |
| Conference Date | 2016-01-28 - 2016-01-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kansai University, Centenary Memorial Hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics, and Related Topics |
| Paper Information | |
| Registration To | US |
| Conference Code | 2016-01-US-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Development of Card Type Parametric Loudspeaker and Its Evaluation |
| Sub Title (in English) | |
| Keyword(1) | Parametric loudspeaker |
| Keyword(2) | Directivity |
| Keyword(3) | Ultrasonic emitter |
| Keyword(4) | Power consumption |
| Keyword(5) | |
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| 1st Author's Name | Ryuto Nagashima |
| 1st Author's Affiliation | The University of Electro-Communications (UEC Tokyo) |
| 2nd Author's Name | Hideyuki Nomura |
| 2nd Author's Affiliation | The University of Electro-Communications (UEC Tokyo) |
| 3rd Author's Name | Tomoo Kamakura |
| 3rd Author's Affiliation | The University of Electro-Communications (UEC Tokyo) |
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| Speaker | Author-1 |
| Date Time | 2016-01-28 17:20:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2015-92, EA2015-57 |
| Volume (vol) | vol.115 |
| Number (no) | no.423(US), no.424(EA) |
| Page | pp.49-54(US), pp.13-18(EA) |
| #Pages | 6 |
| Date of Issue | 2016-01-21 (US, EA) |
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