【摘要】 研究了一种新型基于布里渊光时域分析(BOTDA)的光纤漏油传感器,可在min量级发现小规模漏油事件,主要用于长距离输油管线、油库等场所的实时漏油监测。通过模拟监测输油管道输运状态,将光纤埋敷于特种油敏材料中沿输油管线铺设,用BOTDA仪实时监测光纤布里渊频移,可快速发现并定位漏油事件。实验证明了本文技术的可行性,能够在10min内准确定位小规模漏油事件,采用DiTeStSTA-R系列BOTDA仪,在1.7km的传感光纤上实现了0.1m的定位精度。更多还原

【Abstract】 A novel optical fiber oil leakage sensor based on Brillouin optical time-domain analysis is reported,which can be mainly used for real-time and small-scale monitoring.of long-distance oil pipeline,oil depots and other places.Though simulating pipeline transportation state,sensing fiber is embedded in oil sensitive material laying along the pipeline,and the leakage location can be found by real-time monitoring Brillouin frequency shift.Experimental results show that the technology is feasible,small-scale oil leakage can accurately be located in 10 min,and 0.1mpositional accuracy is realized on 1.7km sensing optical fiber by BOTDA.更多还原