金属基带状分布式光纤传感器性能的试验研究  

The Experimental Study of Distributed Optical Fiber Sensor Based on Metal Banding

作　　者：张昊宸[1] 施斌[1] 王静[1] 魏广庆 

机构地区：[1]南京大学光电传感工程监测中心,南京210023 [2]苏州南智科技传感有限公司,江苏苏州215100

出　　处：《光纤与电缆及其应用技术》2013年第4期15-19,共5页Optical Fiber & Electric Cable and Their Applications

基　　金：国家重点基础研究发展计划(973计划)课题(2011CB710605);国家科技支撑计划课题(2012BAK10B05)

摘　　要：相比于传统的点式检测监测技术,分布式光纤传感监测技术具有很大的优势,在传感器研究领域与工程监测中已成为热点。介绍了一种金属基带状分布式光纤传感器,并设计了拉伸标定试验以及工字钢三点弯试验,利用布里渊光时域反射分析技术(BOTDA)检验该传感光纤的拉伸测量精度,利用布里渊光时域反射计(BOTDR)技术测量敷设在工字钢上表面的不同类型光纤的应变。测量结果以及与百分表测量结果的比对表明,该金属基带状分布式光纤传感器能较真实地反映被测物结构表面的应变情况,将该新型传感器应用到结构变形的健康监测中是可行的。Compared with traditional point detection and monitoring technique distributed optical fiber sensor detection technique has great advantages, and has become a hot topic in the fields of sensor research and engineering monitoring. A new kind of distributed optical fiber sensor based on metal banding is introduced. A three-points bending test on an I-beam is performed and the strain of several kinds of sensor which are pasted on the I-beam is measured using Brillouin optical time domain analysis （BOTDA）. The measurements are compared with those of the measurement results by dial gage. It is proved that the distributed optical fiber sensor based on metal banding can truly reflect the strain situation on the structure surface of measured object. So it is feasible to apply this optical fiber sensor in the field of health monitoring of the structure distortion.

关 键 词：分布式光纤传感器 应变监测 布里渊光时域反射分析技术 布里渊光时域反射计 结构变形的健康监测 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]