激光与光电子学进展, 2018, 55 (9): 090002, 网络出版: 2018-09-08
分布式光纤裂缝传感工程应用研究进展 下载: 1116次
Progress in Distributed Optical Fiber Crack Sensing Engineering
光纤光学 光纤传感器 分布式 裂缝 力学解析解 畸变光信号 fiber optics fiber optic sensors distributed type cracks mechanics analytic solution distorted light signal
摘要
随着光纤传感技术的发展, 近年来分布式光纤传感技术被用于结构裂缝的监测, 其中主要包括准分布式光纤传感技术——光纤布拉格光栅技术, 分布式光纤裂缝传感技术——基于瑞利散射的光时域反射技术、布里渊光时域反射技术、布里渊光时域分析技术、布里渊光相关域分析技术以及最新的具有高空间分辨率的脉冲预抽运布里渊光时域分析技术和差分脉冲对布里渊光时域分析技术。基于这些技术在结构裂缝监测中的应用, 综述各自的优缺点及国内外分布式光纤裂缝传感工程应用的情况。同时对分布式光纤裂缝监测中的力学、畸变光信号及实验研究等问题进行分析, 提出关于这些重点问题的研究见解。
Abstract
With development of the optical fiber sensing technology, the distributed optical fiber sensing technology has been used in the structure crack monitoring in recent years, mainly including the quasi-distributed optical fiber sensing technology of fiber Bragg grating, and distributed fiber optic crack sensing technologies such as optical time domain reflectometry, Brillouin optical time domain reflectometry, Brillouin optical time domain analysis, Brillouin optical correlation domain analysis, and the latest high spatial-resolution pulse pre-pump Brillouin optical time domain analysis and differential pulse-width pair Brillouin optical time domain analysis. Based on the applications of these techniques in structural crack monitoring, their respective advantages and disadvantages and applications of distributed fiber optic crack sensing all through the world are summarized. Additionally, mechanics, distorted light signal and experimental researches are analyzed in the distributed optical fiber crack monitoring, and some opinions on the issues are proposed.
吴永红, 朱莎, 许蔚, 张海明. 分布式光纤裂缝传感工程应用研究进展[J]. 激光与光电子学进展, 2018, 55(9): 090002. Wu Yonghong, Zhu Sha, Xu Wei, Zhang Haiming. Progress in Distributed Optical Fiber Crack Sensing Engineering[J]. Laser & Optoelectronics Progress, 2018, 55(9): 090002.