Research on improvement of distributed fiber optic strain measurement system and the application to monitoring
| Project/Area Number |
20510156
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Social systems engineering/Safety system
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| Research Institution | Mie University |
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Principal Investigator |
NARUSE Hiroshi Mie University, 大学院・工学研究科, 教授 (60402690)
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| Co-Investigator(Kenkyū-buntansha) |
TATEDA Mitsuhiro 千葉大学, 大学院・融合科学研究科, 教授 (30282445)
KODAMA Tetsuji 名城大学, 理工学部・電気電子工学科, 教授 (50262861)
KAWAGUCHI Jun 三重大学, 大学院・工学研究科, 准教授 (50224746)
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| Research Collaborator |
KISHIDA Kinzo ニューブレクス株式会社, 代表取締役
LI Che Hsien ニューブレクス株式会社, 取締役
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2010: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2009: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2008: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
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| Keywords | 光ファイバ / ブリルアン散乱 / スペクトル形状 / ひずみ計測 / 不均一ひずみ分布 / モニタリング / 変位センサ / 円環 / ブルルアン散乱 / スペクトル変形 / ひずみ / 直径変化 / データ圧縮 / 計測 / 変形 / センサ / ブリルアン散乱光 / アルゴリズム |
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| Research Abstract |
Fundamental research was conducted to improve the performance of a fiber optic strain measurement system based on Brillouin scattering and apply it to structure monitoring. The following achievements were made ; (i) clarification of a method to theoretically analyze the deformation shape of the Brillouin gain spectrum produced from an optical fiber under a non-uniform strain distribution, and experimental validation of the theoretical analysis, (ii) development of a method to measure the change in a circular ring diameter using the results obtained in (i), (iii) development of a signal processing method to decrease the strain measurement error by improvement of the spatial resolution, and (iv) development of a two-dimensional displacement sensor.
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Report
(4 results)
Research Products
(31 results)
