摘 要：从理论上研究时间双光路二氧化硫荧光检测机理，推导了测量二氧化硫气体浓度的数学模型。该方法从理论上消除了因气体成分改变所引起的二氧化硫的测量误差，使其在选择性、灵敏度、抗干扰能力等都有较大的提高。
关键词：检测机理；二氧化硫；时间双光路
Study on Measurement Mechanism for the Concentration of Sulfur D ioxide
GONG Ruikun, WANG Rulin
(College of Information and Electrical Engineering,
CUMT(Beijing), Be ijing 100083, China)
Abstract: A new method of measurement of sulfur dioxide based on time different channel ultraviolet fluorescence was introduced. The method can remove the error of gas change. Moreover, there is greater improvement in selectivity, sensitivity, anti interference ability, etc.
Key words: measurement mechanism; sulfur dioxide; time bilight route