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| Presentation | 2018-10-11 16:00 [Poster Presentation] Effect of distributed load on BGS-based ring circumferential strain measurement Kento Nishimura, Shusuke Narieda, Hiroshi Naruse (Mie Univ.)  OFT2018-47 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have proposed a method for measuring a ring circumferential strain. In this method, the model of a Brillouin gain spectrum (BGS) is fitted to BGSs observed distributedly in an optical fiber on a ring circumference. In addition, we clarified, by simulation, the relationship between BGS observation conditions (observation angle, section and frequency) and the measurement error of the strain on the ring to which a pair of concentrated loads are applied. In this report, strain measurement errors generated in the ring under two kinds of unidirectional distributed loads and bidirectional uniform loads are investigated to clarify the error characteristics under various load conditions. As a result, it was found that the strain measurement error is approximately proportional to the square root of the interval of the observation angle and frequency, namely, the reciprocal of the number of observed BGSs, similarly to the case with the concentrated load. This shows that the strain measurement error decreases independently of the load distribution with the increase of the number of the BGS observation points. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Optical fiber sensing / Brillouin gain spectrum / observation condition / distributed load / ring / strain / measurement error / simulation | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 238, OFT2018-47, pp. 153-156, Oct. 2018. | |
| Paper # | OFT2018-47 | |
| Date of Issue | 2018-10-04 (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 | OFT2018-47 |
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| Conference Information | |
| Committee | OFT |
| Conference Date | 2018-10-11 - 2018-10-12 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Touhoku Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | OFT |
| Conference Code | 2018-10-OFT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of distributed load on BGS-based ring circumferential strain measurement |
| Sub Title (in English) | |
| Keyword(1) | Optical fiber sensing |
| Keyword(2) | Brillouin gain spectrum |
| Keyword(3) | observation condition |
| Keyword(4) | distributed load |
| Keyword(5) | ring |
| Keyword(6) | strain |
| Keyword(7) | measurement error |
| Keyword(8) | simulation |
| 1st Author's Name | Kento Nishimura |
| 1st Author's Affiliation | Mie University (Mie Univ.) |
| 2nd Author's Name | Shusuke Narieda |
| 2nd Author's Affiliation | Mie University (Mie Univ.) |
| 3rd Author's Name | Hiroshi Naruse |
| 3rd Author's Affiliation | Mie University (Mie Univ.) |
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| Speaker | Author-1 |
| Date Time | 2018-10-11 16:00:00 |
| Presentation Time | 85 minutes |
| Registration for | OFT |
| Paper # | OFT2018-47 |
| Volume (vol) | vol.118 |
| Number (no) | no.238 |
| Page | pp.153-156 |
| #Pages | 4 |
| Date of Issue | 2018-10-04 (OFT) |
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