激光与光电子学进展, 2020, 57 (21): 210002, 网络出版: 2020-10-27   

布里渊光时域反射仪分布式光纤传感研究进展 下载: 1921次

Distributed Fiber Sensor Based on Brillouin Optical Time Domain Reflection Technique
作者单位
华中科技大学武汉光电国家研究中心, 湖北 武汉 430074
摘要
布里渊光时域反射(BOTDR)技术作为温度和应变测量的分布式光纤传感技术,具有广阔的前景和巨大的应用潜力。与基于其他原理的传感技术相比,BOTDR拥有准确性高、容易铺设、动态范围大、测量范围广等优点。基于BOTDR的原理,阐述了BOTDR的主要性能指标,并回顾了几十年间BOTDR传感的发展历程及其关键技术的进展。内容涉及了空间分辨率的提高、测量距离的拓宽、测量精度的提高、测量时间的缩短,以及温度和应变交叉敏感问题的解决几个方面。从基础设施结构安全监控和地质灾害预警两个方面介绍了BOTDR应用研究的实例,并讨论了其特点。典型的BOTDR已经较为成熟,未来将沿改善软件层、研究现场工程应用和多平台结合的方向发展。
Abstract
Brillouin optical time domain reflection (BOTDR) technique is a kind of simultaneous sensing technology for temperature and strain that has numerous applications and huge potentials. Compared with other sensing technologies, BOTDR has the following advantages: high accuracy, convenient layout, large dynamic range, and long measurement distance. This study introduces the principle of BOTDR and illustrates its main performance indexes. Additionally, new developments and key advances in BOTDR sensing for decades are reviewed, including improvement of spatial resolution, expansion of measurement distance, improvement of measurement accuracy, reduction of measurement time, as well as the solution of temperature and strain cross-sensitivity. Moreover, the examples of BOTDR application are introduced from the structural health monitoring of infrastructure and the pre-warning of geological disaster, and their characteristics are discussed. A typical BOTDR is advanced, and the developing trend in future will be characterized by the improvement of software, field-engineering application, and combination of multiple platforms.

包宇奔, 孙军强, 黄强. 布里渊光时域反射仪分布式光纤传感研究进展[J]. 激光与光电子学进展, 2020, 57(21): 210002. Bao Yuben, Sun Junqiang, Huang Qiang. Distributed Fiber Sensor Based on Brillouin Optical Time Domain Reflection Technique[J]. Laser & Optoelectronics Progress, 2020, 57(21): 210002.

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