Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2021-02-22 13:50
Investigation of ultrasound emitter diameter and suppression of grating lobe of an airborne ultrasound phased array
Kyosuke Shimizu, Ayumu Osumi, Youichi Ito (Nihon Univ.) US2020-68
Abstract (in Japanese) (See Japanese page) 
(in English) There is a scanning laser source technique (SLS) for performing high-speed measurement by scanning a laser
excitation source two-dimensionally.
In this study, we aimed to realize an elastic wave source scanning method using high-intensity aerial ultrasonic waves as an
elastic wave source. As one of the methods, we have studied non-contact and non-destructive testing of solid materials by elastic wave source scanning method using Airborne Ultrasound Phased Array (AUPA).
Due to the structure of the AUPA, side lobes and grating lobes (GL) are generated in the radiated sound waves, and artifacts are generated during non-destructive testing. However, it can be suppressed by adjusting the placement conditions of the ultrasound emitter on the AUPA.
In this report, we investigated the sound wave radiation characteristics when the distance between ultrasound emitters was changed by using ultrasonic wave emitters (drive frequency:40kHz) with diameters of 8 mm and 10 mm, including the generated harmonic waves. As a result, it was confirmed that GL can be suppressed including harmonic sound waves when an ultrasound emitter with a diameter of 8 mm is used.
Keyword (in Japanese) (See Japanese page) 
(in English) High-intensity aerial ultrasonic waves / Focus ultrasonic waves / Scanning source method / Non-destructive testing / Airborne ultrasound phased array / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 377, US2020-68, pp. 10-13, Feb. 2021.
Paper # US2020-68 
Date of Issue 2021-02-15 (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)
Download PDF US2020-68

Conference Information
Committee US  
Conference Date 2021-02-22 - 2021-02-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To US 
Conference Code 2021-02-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigation of ultrasound emitter diameter and suppression of grating lobe of an airborne ultrasound phased array 
Sub Title (in English)  
Keyword(1) High-intensity aerial ultrasonic waves  
Keyword(2) Focus ultrasonic waves  
Keyword(3) Scanning source method  
Keyword(4) Non-destructive testing  
Keyword(5) Airborne ultrasound phased array  
Keyword(6)  
Keyword(7)  
Keyword(8)  
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  
3rd Author's Affiliation Nihon University (Nihon Univ.)
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2021-02-22 13:50:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2020-68 
Volume (vol) vol.120 
Number (no) no.377 
Page pp.10-13 
#Pages 4 
Date of Issue 2021-02-15 (US) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan