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Paper Abstract and Keywords
Presentation 2023-10-18 13:55
An ultrasonic method for measuring small continuous sinusoidal displacements using a network analyzer
Yuya Komatsu, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai (Tohoku Univ.) US2023-38
Abstract (in Japanese) (See Japanese page) 
(in English) We have developed a method for generating continuous sinusoidal displacements of an object to estimate the viscoelastic parameters of the object. However, the displacement caused by the ultrasonic excitation force is small, and it is still difficult to stably measure the displacement. Thus, to stably measure the amplitude of minute sinusoidal displacement, the present study proposed a novel method using a network analyzer. The S parameter of the first ultrasound-reflected wave received from the surface of the object vibrating sinusoidally was measured using a network analyzer. The S parameter was formulated theoretically, and the amplitude of the sinusoidal displacement of the object was estimated from the amplitude characteristics of the inverse Fourier transform signal. We demonstrated that the proposed method can accurately measure minute sinusoidal displacements on the order of micrometer.
Keyword (in Japanese) (See Japanese page) 
(in English) network analyzer / sinusoidal displacement measurement / S parameter / Fourier transform / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 214, US2023-38, pp. 5-10, Oct. 2023.
Paper # US2023-38 
Date of Issue 2023-10-11 (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 US2023-38

Conference Information
Committee US  
Conference Date 2023-10-18 - 2023-10-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. and Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Photoacoustics, Ultrasound in medicine, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2023-10-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An ultrasonic method for measuring small continuous sinusoidal displacements using a network analyzer 
Sub Title (in English)  
Keyword(1) network analyzer  
Keyword(2) sinusoidal displacement measurement  
Keyword(3) S parameter  
Keyword(4) Fourier transform  
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1st Author's Name Yuya Komatsu  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Shohei Mori  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Mototaka Arakawa  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Hiroshi Kanai  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2023-10-18 13:55:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2023-38 
Volume (vol) vol.123 
Number (no) no.214 
Page pp.5-10 
#Pages 6 
Date of Issue 2023-10-11 (US) 

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