长距离分布式光纤传感技术研究进展

发布时间：2018-01-16 01:07

本文关键词：长距离分布式光纤传感技术研究进展　出处：《物理学报》2017年07期 　论文类型：期刊论文

【摘要】：分布式光纤传感技术是光纤传感领域的重要组成部分,具有以下突出优势:无需在光纤上制作传感器,传感光纤集传感与传输于一体,可实现远距离、大范围的传感与组网;可连续感知光纤传输路径上每一点的温度、应变、振动等物理参量的空间分布和变化信息,单根光纤上能获得多达数万点的传感信息.由于在长距离连续传感方面具有不可替代的优势,分布式光纤传感技术在周界安防、石油电力、大型结构等领域的安全监控方面具有非常广阔的应用前景.本文主要介绍电子科技大学光纤传感与器件研究团队在长距离分布式光纤静(布里渊光时域分析仪)、动(相位敏感型光时域反射仪)态参量传感技术取得的研究进展,包括基础与应用研究两个方面.
[Abstract]:Distributed optical fiber sensing technology is an important part of the field of optical fiber sensing, which has the following outstanding advantages: no need to make sensors on the optical fiber, sensor fiber can be integrated with the sensor and transmission, can achieve long-distance. A wide range of sensing and networking; The spatial distribution and variation information of physical parameters such as temperature, strain and vibration at each point in the fiber transmission path can be continuously sensed. As many as tens of thousands of sensor points can be obtained on a single optical fiber. Because of its irreplaceable advantages in long distance and continuous sensing, distributed optical fiber sensing technology is used in perimeter security and petroleum power. Security monitoring in large structures and other fields has a very broad application prospects. This paper mainly introduces the optical fiber sensor and device research team of University of Electronic Science and Technology in long distance distributed optical fiber static (Brillouin optical time domain analyzer). . The research progress of dynamic (phase sensitive optical time domain reflectometer) state parametric sensing technology includes basic and applied research.
【作者单位】：电子科技大学光纤传感与通信教育部重点实验室;
【基金】：国家自然科学基金重大项目(批准号:61290312);国家自然科学基金重大仪器项目(批准号:41527805) 教育部创新团队项目(批准号:IRT1218) “111”学科创新引智基地计划(批准号:B14039)资助的课题~~
【分类号】：TP212
【正文快照】： 出光脉冲编码技术改进信噪比,并取得了可喜的1长距离布里渊光时域分析仪进展.该方案中,首先在发射端对发送的抽运光脉冲进行编码(BOTDA)研究进展(如Simplex码),接收端则用快速Hadamard反变换解码.与单一的累加平均相比,1.1长距离BOTDA发展历程回顾在相同平均次数条件下,可取得

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