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Paper Abstract and Keywords
Presentation 2023-06-16 14:35
Application of transient vibration response excited by acoustic radiation force to imaging of metal foil
Koko Kitamura, Hideyuki Nomura (UEC) US2023-12
Abstract (in Japanese) (See Japanese page) 
(in English) Vibro-acoustography visualizes the mechanical properties of an object with the vibration or acoustic emission induced by acoustic radiation force. This method usually uses dynamic radiation force induced by amplitude-modulated ultrasound. However, it is necessary to select a modulation frequency close to a natural frequency of an object. To solve this problem, we have proposed using the transient response of an object to a step-functional acoustic radiation force in the vibro-acoustgraphy (hereinafter referred to as the ``transient response method''). This report discussed the feasibility of applying the transient response method to imaging a metallic foil with a defect. The object is an aluminum foil with a slit of different length. Transient response signals were acquired by laser Doppler vibrometry while scanning the ultrasonic irradiation position. The amplitudes and resonance frequencies of obtained signals constructed an image. The results showed that the transient response method clearly showed the presence of a slit, regardless of whether the amplitude or resonance frequency.
Keyword (in Japanese) (See Japanese page) 
(in English) Focusing ultrasound / Nondestructive testing / Acoustic imaging / Step response / Mechanical property / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 83, US2023-12, pp. 15-19, June 2023.
Paper # US2023-12 
Date of Issue 2023-06-09 (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 US2023-12

Conference Information
Committee US  
Conference Date 2023-06-16 - 2023-06-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Muromachi Campus, Doshisha University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ultrasound in medicine, Acoustic imaging, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2023-06-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Application of transient vibration response excited by acoustic radiation force to imaging of metal foil 
Sub Title (in English)  
Keyword(1) Focusing ultrasound  
Keyword(2) Nondestructive testing  
Keyword(3) Acoustic imaging  
Keyword(4) Step response  
Keyword(5) Mechanical property  
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1st Author's Name Koko Kitamura  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Hideyuki Nomura  
2nd Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-2 
Date Time 2023-06-16 14:35:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2023-12 
Volume (vol) vol.123 
Number (no) no.83 
Page pp.15-19 
#Pages 5 
Date of Issue 2023-06-09 (US) 

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