激光与光电子学进展, 2020, 57 (5): 050001, 网络出版: 2020-03-05
基于相干瑞利散射的分布式光纤声波传感技术 下载: 3857次封面文章特邀综述
Distributed Optical Fiber Acoustic Sensing Technology Based on Coherent Rayleigh Scattering
散射 相干瑞利散射 相敏光时域反射计 光纤传感 分布式光纤声波传感 scattering coherent Rayleigh scattering phase sensitive optical time domain reflectometry fiber sensing distributed optical fiber acoustic sensing
摘要
基于相干瑞利散射的分布式光纤声波传感(DAS)技术可以实时获取光纤沿线各位置的振动和声场信息,具有传感范围大、时空精度高等独特优势,近年来得到了多个领域研究学者的广泛关注。论述了DAS的基本传感机理,概述了相干衰落抑制、响应带宽与空间分辨率提升等关键科学技术问题的研究进展,介绍了DAS在安防、铁路等领域的应用进展,并针对DAS技术未来可能的发展方向进行了评述与展望。
Abstract
Distributed optical fiber acoustic sensing (DAS) technology based on coherent Rayleigh scattering can obtain the vibration and sound field information along the optical fiber in real time. Recently, DAS has received extensive attention from scholars in many fields, due to its unique advantages such as large sensing range and high time-and-space resolution. In this paper, the fundamental sensing mechanism of DAS is introduced. The research progress on key scientific and technological issues, such as coherent fading suppression, response bandwidth enhancement, and spatial resolution optimization, is briefly reviewed. The application progress of DAS in perimeter security, rail transportation, and other fields is also described. Finally, the potential future research directions are discussed and speculated.
蔡海文, 叶青, 王照勇, 卢斌. 基于相干瑞利散射的分布式光纤声波传感技术[J]. 激光与光电子学进展, 2020, 57(5): 050001. Haiwen Cai, Qing Ye, Zhaoyong Wang, Bin Lu. Distributed Optical Fiber Acoustic Sensing Technology Based on Coherent Rayleigh Scattering[J]. Laser & Optoelectronics Progress, 2020, 57(5): 050001.