Functional Evolution of Fiber Optic Nerve Systems with Optical Correlation Domain Technique for Structures and Materials that can Feel Pain

利用光学相关域技术研究光纤神经系统的功能进化，用于感觉疼痛的结构和材料

• 批准号: 21226011
• 负责人: HOTATE Kazuo
• 金额: $ 130.46万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (S)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009-05-11 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21226011/
• 关键词: 計測システム; 光ファイバセンサ; スマート材料構造; 分布型センシング; スマート材料・構造; 防災危機・管理技術; 防災危機管理技術

Functions of original "optical correlation domain techniques" have been evolved, which realizes distributed sensing of properties along optical fibers, such as scattering, by manipulating interference characteristics by laser frequency modulation. By embedding the "fiber optic nerves" along structures, for example bridges, "structures that can feel pain" can be realized. Our techniques had demonstrated superior functions, such as mm resolution, kHz speed, and random accessibility. In this project, we have evolved the functions to realize simultaneous sensing of strain and temperature, high speed acquisition of whole distributed data, and high speed random accessibility. Spatial resolution, sensing range, and noise characteristics have also been improved. Multiplexing of short-length distributed sensors or fiber Bragg gratings has also been proposed and demonstrated. Applications, including structural health monitoring for aircrafts, have been studied to prove the applicability.

通过激光频率调制来操纵干涉特性，实现了对光纤特性(例如散射)的分布式传感，从而发展了最初的“光学相关域技术”的功能。通过将“光纤神经”嵌入到桥梁等结构中，就可以实现“能感觉到疼痛的结构”。我们的技术已经显示出优越的功能，如毫米分辨率、千赫速度和随机可访问性。在本项目中，我们发展了实现应变和温度的同时传感、整个分布式数据的高速采集和高速随机访问的功能。空间分辨率、传感范围和噪声特性也得到了改善。还提出并论证了短长度分布式传感器或光纤布拉格光栅的多路复用。已对包括飞机结构健康监测在内的应用进行了研究，以证明其适用性。

项目成果

High Resolution PNC-OFDR With Suppressed Fading Noise for Dispersive Media Measurement

• DOI: 10.1109/jlt.2013.2238505
• 发表时间: 2013-03
• 期刊: Journal of Lightwave Technology
• 影响因子: 4.7
• 作者: Y. Koshikiya;Xinyu Fan;F. Ito;Zuyuan He;K. Hotate

Measurement of Bragg-wavelength distribution in a long-length fiber Bragg grating with high speed sampling

高速采样长光纤布拉格光栅中布拉格波长分布的测量

• DOI: 10.1143/apex.2.082401
• 发表时间: 2009
• 期刊: Applied Physics Express
• 影响因子: 2.3
• 作者: Xu;B.;嶋田義仁;K. Kajiwara and K. Hotate
• 通讯作者: K. Kajiwara and K. Hotate

Verification of Brillouin Optical Correlation Domain Reflectometry by Numerical Simulation and Experiment

布里渊光相关域反射测量的数值模拟与实验验证

• 发表时间: 2012
• 作者: S. Manotham;M. Kishi;Z. He;and K. Hotate
• 通讯作者: and K. Hotate

Background noise suppression in Brillouin optical correlation domain reflectometry based on optimized intensity modulation scheme

基于优化强度调制方案的布里渊光相关域反射测量背景噪声抑制

• 发表时间: 2011
• 作者: S.Manotham;K.Kajiwara Y.Mizuno;Z.He;K.Hotate
• 通讯作者: K.Hotate

Distributed fiber sensing technology: Currents and challenges <Invited>

分布式光纤传感技术：现状与挑战<特邀>

• 发表时间: 2012
• 期刊: Optica pura y aplicada
• 影响因子: 0.2
• 作者: H. Ohno;and Y. Kohno;Hiroshi NAWATA;K. Hotate
• 通讯作者: K. Hotate