多机理融合分布式光纤传感技术研究

黄麟景, 周霄, 樊昕昱, 王峰, 张旭苹, 何祖源 - Acta Optica Sinica, 2024 - opticsjournal.net
摘要为了解决传统分布式光纤传感系统只针对单一变量进行测量的问题, 研究人员近年来结合多
种光纤传感测量机理, 提出了一系列多机理融合的分布式光纤传感系统, 使用同一系统实现多种 …

分布式多参数光纤传感技术研究进展

况洋, 吴昊庭, 张敬栋, 周欢, 郑华, 黄礼刚, 白永忠… - 光电工程, 2018 - cn.oejournal.org
分布式光纤传感系统利用光纤既能传感又能传输信号的特性实现对光纤沿线振动, 应变,
温度等物理量的长距离连续测量, 在周界安防, 电网管道监控, 大型结构健康监测等领域具有十分 …

Sampling rate enhancement and fading suppression of Φ-OTDR with frequency division multiplex technique

Y Wakisaka, D Iida, Y Koshikiya… - Journal of Lightwave …, 2022 - opg.optica.org
To capture vibration waveforms whose frequencies exceed the limitation set by sensing fiber
length in Φ–OTDR distributed vibration sensing (DVS), we propose a sampling rate …

[PDF][PDF] 基于相位解调的相位敏感光时域反射计研究

司召鹏, 卜泽华, 毛邦宁, 赵春柳, 徐贲… - Laser & …, 2022 - researching.cn
摘要基于相位敏感的光时域反射计(Φ-OTDR) 通过发射光脉冲到传感光纤内,
利用分析传感光纤的后向瑞利散射光或前向散射光的方法对入侵扰动事件进行识别和定位 …

Phase sensitive optical time domain reflectometry based on compressive sensing

S Qu, Z Liu, Y Xu, Z Cong, D Zhou, S Wang… - Journal of Lightwave …, 2019 - opg.optica.org
A sub-Nyquist random single-pulse sampling method based compressive sensing technique
is proposed firstly to reconstruct signals under test in phase-sensitive optical time domain …

[PDF][PDF] 分布式光纤传感技术研究和应用的现状及未来

张旭苹, 张益昕, 王亮, 余贶琭, 刘波, 尹国路… - Acta Optica …, 2024 - researching.cn
摘要我国大型基础设施的建设规模已多年位居世界之首, 分布式光纤传感技术(DOFS)
作为大型基础设施健康状态实时监测最有潜力的技术, 近年来得到了迅速发展. 针对DOFS …

Broad-bandwidth and accurate optical vibration sensing by using FDM Φ-OTDR with linear regression analysis of multi-frequency phase responses

Y Wakisaka, H Takahashi, D Iida, Y Koshikiya - Optics Express, 2023 - opg.optica.org
We demonstrate Φ-OTDR distributed acoustic sensing (DAS) that realizes both a broad
bandwidth for the vibration frequency and wide dynamic range for the vibration amplitude …

[PDF][PDF] Advances of key technologies on distributed fiber system for multi-parameter sensing

Y Kuang, HT Wu, JD Zhang, H Zhou… - Opto-Electronic …, 2018 - researching.cn
Based on the fiber's characteristics of both sensing and transmission for physical signal,
distributed fiber sensing system can realize long-distance and continuous measurement of …