布里渊光时域分析动态应变传感技术研究进展

doi:10.3969/j.issn.0255-8297.2020.02.001

摘要/Abstract

摘要： 布里渊光时域分析（Brillouin optical time domain analysis，BOTDA）可以实现长距离、分布式、高空间分辨率、高精度的应变传感，在大型基础设施健康监测、飞行器状态监测领域具有广阔的应用前景.然而传统的BOTDA需要扫频，传感速度较慢，难以实现动态应变的测量.针对这一问题，根据工作原理的不同分别综述了斜坡辅助BOTDA（slope-assistedBOTDA，SA-BOTDA）、快速BOTDA（fast BOTDA，F-BOTDA）、免扫频BOTDA（sweepfree BOTDA，SF-BOTDA）和基于啁啾泵浦/探测光的动态BOTDA近年来的进展情况，对比了各种技术的优缺点，并对布里渊光时域动态应变传感技术的发展前景进行了展望.

关键词: 光纤传感器, 布里渊散射, 布里渊光时域分析, 分布式应变传感

Abstract: Brillouin optical time domain analysis (BOTDA) has wide application prospects in health monitoring of large infrastructure and condition monitoring of aircraft, since it is capable of sensing distributed strain over long distance with high spatial resolution and accuracy. However, the sensing speed of conventional BOTDA is fairly slow and hardly realize dynamic strain measurement due to its frequency sweeping process. Aim at this problem, this paper reviews the research progress of BOTDA for dynamic strain sensing in recent years, including slope-assisted BOTDA (SA-BOTDA), fast BOTDA (F-BOTDA), sweep free BOTDA (SF-BOTDA) and dynamic BOTDA based on chirped pump/probe. The advantages and disadvantages of these technologies are discussed, and the development prospects of BOTDA for dynamic sensing are estimated as well.

Key words: optical fber sensor, Brillouin scattering, Brillouin optical time domain analysis (BOTDA), distributed strain sensing

中图分类号:

TN29

朱涛, 郑华, 张敬栋. 布里渊光时域分析动态应变传感技术研究进展[J]. 应用科学学报, 2020, 38(2): 197-214.

ZHU Tao, ZHENG Hua, ZHANG Jingdong. Progress in Research of Brillouin Optical Time Domain Analysis for Dynamic Strain Sensing[J]. Journal of Applied Sciences, 2020, 38(2): 197-214.

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