光纤荧光传感系统的设计

Design of optical fiber fluorescence sensor system

将荧光测量法和光纤传感技术相结合,采用弱光信号检测技术,设计有效的电荷耦合元件(以下简称CCD)检测系统,并消除环境背景杂散光及光源不稳定等因素对系统精度的影响.该光纤荧光传感系统根据荧光光谱的强度对水中浮游植物的浓度进行分析处理,并以此判断水质的好坏.

Combining fluorescence measurement and optical fiber sensing technology, the weak light signal detection technology was adopted to design an effective CCD detection system for eliminating the unstable factors of the environmental background stray light and light source, which affect the precision of the system. Based on the intensity of fluorescence spectrum, fluorescence sensor system analyses the phytoplankton concentration in water treatment for judging the water quality.