摘要
光纤布喇格光栅对应力应变或温度微小变化而产生相应的中心波长变化,对该波长进行编码,利用角度调谐法布里-珀罗滤波器实现波长的调谐,指出了对解调仪同一通道选择传感器应参考中心波长的差异;通过光纤光栅传感器构建了一个实际应用的分布式光纤光栅传感采集网络,并结合嵌入式数据库,详细设计了采集系统软件模块,该系统在国内多座大型桥梁健康监测中得到应用,为桥梁健康监测系统提供了长期在线和准确可靠的海量数据。
The central wave length of fiber bragg grating changes with the little change of stress strain or temperature.It is coded and tuned with the Fabry-Perot filter.It is pointed out that the difference must be considered for the sensors in the same chunnel through one optic fiber.To construct a distributed network of optic fiber grating sensing with the sensors,which is applying in a actual project.To design the data acquisition software system particularly,which includes five submoduls to make use of the feature of the embedded database.The data acquisition system has being applied in large bridge and provided great capacity data of long period online and nicety.
出处
《微计算机信息》
2009年第16期156-158,共3页
Control & Automation
基金
基金申请人:姜德生
项目名称:光纤传感敏感材料与光纤微加工技术研究
基金颁发部门:国家自然科学基金委(60537050)
关键词
光纤布喇格光栅
健康监测
在线采集
嵌入式数据库
Fiber Bragg Grating
Health Monitoring
Online Data Acquisition
Embeded Database
