Paper Abstract and Keywords |
Presentation |
2021-07-30 14:55
Radiation of sound waves of airborne ultrasound phased array using chirp signals Kyosuke Shimizu, Ayumu Osumi, Youichi Ito (Nihon Univ.) US2021-22 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We have studied a new method of non-contact evaluation of material that using hi-speed scanning of airborne ultrasound irradiation by an airborne ultrasound phased array (AUPA). The ultrasound emitter which composed AUPA is difficult to emit pulsed sound waves. Because, this ultrasound emitter is resonant drive system. Therefore, decrease of imaging accuracy and artifact are occurred when a non-destructive testing by a guided wave propagation imaging in material using airborne ultrasound. One way to solve the above problem, we propose a pulse compression for propagated guided wave in material by using chirp signals to visualize the guide wave propagation image in the material as a pulse wave propagation image. In order to realize this method, it is necessary to radiate an airborne ultrasound as a chirp wave to excite the guide wave in the material. In this study, we aim to realize a pulse wave radiation by pulse compression processing of chirp waves emitted from the AUPA. In this report, as a basic study, we verified the effectiveness of pulse compression processing for radiated sound waves from the ultrasound emitter and the AUPA composed of ultrasound emitter. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
High-intensity aerial ultrasonic waves / Focus ultrasonic waves / Airborne ultrasound phased array / Pulse compression / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 131, US2021-22, pp. 20-25, July 2021. |
Paper # |
US2021-22 |
Date of Issue |
2021-07-23 (US) |
ISSN |
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) |
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US2021-22 |
Conference Information |
Committee |
US |
Conference Date |
2021-07-30 - 2021-07-30 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
US |
Conference Code |
2021-07-US |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Radiation of sound waves of airborne ultrasound phased array using chirp signals |
Sub Title (in English) |
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Keyword(1) |
High-intensity aerial ultrasonic waves |
Keyword(2) |
Focus ultrasonic waves |
Keyword(3) |
Airborne ultrasound phased array |
Keyword(4) |
Pulse compression |
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1st Author's Name |
Kyosuke Shimizu |
1st Author's Affiliation |
Nihon University (Nihon Univ.) |
2nd Author's Name |
Ayumu Osumi |
2nd Author's Affiliation |
Nihon University (Nihon Univ.) |
3rd Author's Name |
Youichi Ito |
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Nihon University (Nihon Univ.) |
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Speaker |
Author-1 |
Date Time |
2021-07-30 14:55:00 |
Presentation Time |
25 minutes |
Registration for |
US |
Paper # |
US2021-22 |
Volume (vol) |
vol.121 |
Number (no) |
no.131 |
Page |
pp.20-25 |
#Pages |
6 |
Date of Issue |
2021-07-23 (US) |
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