光纤Bragg光栅传感网络实时监测与应变分析  

Real-time Monitoring System of Fiber Bragg Grating Sensing Nets and Analyzing of Varia-tion of Strain

作　　者：刘建平[1] 赵永贵 孙宇 邱海涛[1] 龙昊波[1] 李川[1] 

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明650051 [2]云南航天质量无损检测站,昆明650217

出　　处：《微计算机信息》2006年第04S期186-188,共3页Control & Automation

基　　金：云南省学术与技术带头人基金(2003RC12);云南省省院省校基金(2003DEBPA00A058);云南省教育厅教学与科研带头人培养项目。

摘　　要：作为一种绝对式传感器,波长调制式光纤Bragg光栅传感器对应变的响应为0.9pm/??。开发了基于可调谐F-P滤波器的检测仪器与计算机系统之间的实时监测系统。在对白泥井3号隧道的监测过程中,该光纤Bragg光栅传感网络实时监测系统实现了对来自隧道结构的应变状态的实时采集和描绘,并可以存储波长和应变数据以便后期查寻分析;借助分析光纤Bragg光栅传感器的应变图、三维应变图,为判断隧道二次衬砌的受力趋向提供参考。As an absolute sensor, the response to variation of strain of wavelength-modulated fiber Bragg sensor is 0.9 pm/？？？？We developed real-time monitoring system between signal detecting apparatus based on tunable F-P filter and computer. During the process of monitoring in Tunnel 3 of BaiNiJing, the real-time monitoring system of fiber Bragg sensing nets realizes real-time gathering and displaying of variation of strain in tunnel structure, And stores wavelength and variation of strain data in order to be queried and analyzed later. We get to know the trend of strain in tunnel by analyzing curve of strain and 3-D curve of strain for fiber Bragg grating sensors.

关 键 词：光纤BRAGG光栅 Bragg波长 实时监测 应变分析 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]