摘要
为了获取一种更为经济有效的管道泄漏监测方法。本文在阐述环形光纤光栅应变传感器健康监测及定位原理基础上,实验模拟管道泄漏,采用环形光纤光栅传感器对相应工况进行实时监测。应用SM-130解调仪,结合Savitzky-Golay法对监测数据进行分析,得出环形光纤光栅传感器不仅能对管道泄漏反应迅速,而且能减少管道起始内压对监测结果的影响。整个实验中环形光纤光栅应变传感器对于管道的泄漏监测表现出灵敏度高、响应时间快、误报率低等特性,且能实时连续监测,是一种良好的泄漏监测方法。
Inorder to obtain a more economical and effective method of pipeline leakage monitoring.This paper described the principle of health monitoring and positioning of annular fiber grating sensors, Simulated the pipeline leakage and used the annular fiber grating sensors to real-time monitoring in corresponding working condition. The detected data is analyzed with the demodulation of SM-130 and combined with Savitzky-Golay.The monitoring data not only proved that the annular fiber grating sensors respond quickly to piper line leakage but also reduce the impact from internal pressure. During the entire process of the experiment, the annual fiber grating sensors showed the characteristics that highly sensitive, quick response, little misinformation and continuous realtime monitoring. It is a pretty good way of leak detection.
作者
赵杰
江洪波
王桂萱
ZHAO Jie;JIANG Hongbo;WANG Guixuan(Dalian University,The Research and Development Center of Civil Engineering and Civil Technology,Dalian 116622,China)
出处
《自然灾害学报》
CSCD
北大核心
2019年第1期115-122,共8页
Journal of Natural Disasters
基金
国家自然科学基金项目(51738010)~~
关键词
管道
环形光纤光栅
应变传感器
泄漏监测
pipeline
annular fiber grating sensors
strainsensors
leakage monitoring