【摘要】 基于Cassegrain望远镜系统并借助光学设计软件Zemax设计了一种收发同置的SO2气体浓度检测仪的光学系统,采用Cassegrain望远镜系统,把发射和接受安放在同一个装置中,使得装置结构紧凑、体积小、易加工。给出了光学系统的设计参数和指标,以及理论及实验测得的光源能量使用效率和距离之间的变化曲线。使用该光系统的SO2气体浓度检测仪的测量精度及指标可与美国Monitor Labs公司的ML9850B仪器相比。更多还原

【Abstract】 According to the telescope system of Cassegrain design a gas of SO2 sensing optical system that emission and receive in the same system with the help of optical designing software zemax,and concretely analysed the emission system and receive system.Using the telescope system of Cassegrain the configuration is compact and the volume is small.Give the parameters and index of the system,the change curve between the energy efficiency and distance under the theory and experiment.Under the same environment compared with the ML9850B which is made from Monitor Labs,the changed of curve and characteristic spot of two instruments is the same.This system has the advantages of convenient operation,high sensitivity,good reliability and real-time detection etc.更多还原