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| Presentation | 2009-05-29 11:50 Improvement in measurement accuracy of double-pulse Brillouin optical time-domain reflectometry with signal processing technology Kazushi Oishi, Satoshi Matsuura, Shoji Adachi (Yokogawa Electric Corp.), Yahei Koyamada (Ibaraki Univ.)  OFT2009-16 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | To detect the peak frequency of the Brillouin spectrum accurately is very important to achieve a high accurate strain and temperature distribution measurement by using Brillouin scattered signal in optical fibers. The double-pulse BOTDR has been proposed for measuring distributed strain and/or temperature along optical fibers with a sub-meter spatial resolution, and characterized by the oscillatory spectrum obtained by the interference between backscattered signals of the front and rear pulses. We achieved strain measurement accuracy of ±5μstrain (temperature measurement accuracy of ±0.25℃) with spatial resolution of 20cm by extracting oscillatory component from the measured spectrum by using signal processing technology. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Fiber sensor / Brillouin scattering / Distributed strain measurement / Distributed temperature measurement / BOTDR / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 59, OFT2009-16, pp. 75-78, May 2009. | |
| Paper # | OFT2009-16 | |
| Date of Issue | 2009-05-21 (OFT) | |
| ISSN | Print edition: ISSN 0913-5685 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 | OFT2009-16 |
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| Conference Information | |
| Committee | OFT |
| Conference Date | 2009-05-28 - 2009-05-29 |
| 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 | 2009-05-OFT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement in measurement accuracy of double-pulse Brillouin optical time-domain reflectometry with signal processing technology |
| Sub Title (in English) | |
| Keyword(1) | Fiber sensor |
| Keyword(2) | Brillouin scattering |
| Keyword(3) | Distributed strain measurement |
| Keyword(4) | Distributed temperature measurement |
| Keyword(5) | BOTDR |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kazushi Oishi |
| 1st Author's Affiliation | Yokogawa Electric Corporation (Yokogawa Electric Corp.) |
| 2nd Author's Name | Satoshi Matsuura |
| 2nd Author's Affiliation | Yokogawa Electric Corporation (Yokogawa Electric Corp.) |
| 3rd Author's Name | Shoji Adachi |
| 3rd Author's Affiliation | Yokogawa Electric Corporation (Yokogawa Electric Corp.) |
| 4th Author's Name | Yahei Koyamada |
| 4th Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
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| Speaker | Author-1 |
| Date Time | 2009-05-29 11:50:00 |
| Presentation Time | 25 minutes |
| Registration for | OFT |
| Paper # | OFT2009-16 |
| Volume (vol) | vol.109 |
| Number (no) | no.59 |
| Page | pp.75-78 |
| #Pages | 4 |
| Date of Issue | 2009-05-21 (OFT) |
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