基于荧光猝灭原理的光纤爆炸物传感器  

Optical Fiber Explosive Sensor Based on Fluorescence Quenching

作　　者：初凤红[1] 杨俊杰[1] 王计元[1] 

机构地区：[1]上海电力学院计算机与信息工程学院,上海200090

出　　处：《上海电力学院学报》2011年第2期176-178,182,共4页Journal of Shanghai University of Electric Power

基　　金：上海市教育委员会科研创新项目(09YZ337;09ZZ185);上海市重点科技攻关计划(08160510600;09160501700)

摘　　要：基于荧光猝灭原理制备了硝基芳烃类爆炸物浓度测量系统.以放大荧光聚合物MEH-PPV作为荧光指示剂,采用塑料光纤作为传感和传光元件,传感头做成U型以提高灵敏度,利用相移法实现对荧光寿命的测定.实验测得系统在TNT饱和蒸汽下和没有TNT时相位差约为0.2°.Explosive detection system is manufactured by fluorescence quenching technology. Amplified fluorescence polymer MEH-PPV is used as fluorescence quencher; plastic optical fiber is used as sensor head and to transmit light, in order to increase the sensitivity the sensor head is bent into U-shape; the fluorescence lifetime is detected by using phase modulation technique. Through experiment it is found that the phase difference between saturated TNT atmosphere and without TNT is 0.2 degree.

关 键 词：爆炸物 塑料光纤 荧光寿命 相移法 

分 类 号：TN252[电子电信—物理电子学] TP212.14[自动化与计算机技术—检测技术与自动化装置]