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Paper Abstract and Keywords
Presentation 2024-10-10 13:20
[Poster Presentation] Long distance dynamic strain measurement by using phase-noise-compensated OFDR
Ryota Ogu, Keigo Nakao, Sakuya Hara, Chao Zhang, Fumihiko Ito (Shimane Univ.), Yuichi Yoshimura, Hiroyuki Aoshika, Michio Imai (Kajima Corp.) OFT2024-44
Abstract (in Japanese) (See Japanese page) 
(in English) We performed dynamic strain measurements over 1-km distance using phase-noise-compensated optical frequency domain reflectometry. Light source was a trapezoidal wavelength-swept laser with 100 kHz linewidth, 600 nm/s sweep rate, and 5 Hz modulation frequency, and using up-chirped and down-chirped Rayleigh scattering spectrum for measurement, strain measurement was achieved with refresh rate of 10 Hz. Dynamic strains with amplitudes of 300 µε and frequencies of 3 Hz and 4 Hz at a spatial resolution of 8 cm were confirmed in this article.
Keyword (in Japanese) (See Japanese page) 
(in English) Rayleigh scattering / Optical fiber sensor / Dynamic sensing / / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 202, OFT2024-44, pp. 55-59, Oct. 2024.
Paper # OFT2024-44 
Date of Issue 2024-10-03 (OFT) 
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 OFT2024-44

Conference Information
Committee OFT  
Conference Date 2024-10-10 - 2024-10-11 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2024-10-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Long distance dynamic strain measurement by using phase-noise-compensated OFDR 
Sub Title (in English)  
Keyword(1) Rayleigh scattering  
Keyword(2) Optical fiber sensor  
Keyword(3) Dynamic sensing  
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1st Author's Name Ryota Ogu  
1st Author's Affiliation Shimane University (Shimane Univ.)
2nd Author's Name Keigo Nakao  
2nd Author's Affiliation Shimane University (Shimane Univ.)
3rd Author's Name Sakuya Hara  
3rd Author's Affiliation Shimane University (Shimane Univ.)
4th Author's Name Chao Zhang  
4th Author's Affiliation Shimane University (Shimane Univ.)
5th Author's Name Fumihiko Ito  
5th Author's Affiliation Shimane University (Shimane Univ.)
6th Author's Name Yuichi Yoshimura  
6th Author's Affiliation Kajima Corporation (Kajima Corp.)
7th Author's Name Hiroyuki Aoshika  
7th Author's Affiliation Kajima Corporation (Kajima Corp.)
8th Author's Name Michio Imai  
8th Author's Affiliation Kajima Corporation (Kajima Corp.)
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Speaker Author-1 
Date Time 2024-10-10 13:20:00 
Presentation Time 100 minutes 
Registration for OFT 
Paper # OFT2024-44 
Volume (vol) vol.124 
Number (no) no.202 
Page pp.55-59 
#Pages 5 
Date of Issue 2024-10-03 (OFT) 

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