摘要
利用气体对光吸收的原理，建立了双光路测量ＳＯ_２的数学模型以及测量系统框图，讨论了关键参数的选择，给出一组（０－９９９９）ｐｐｍ（１０－６）范围内，实际在线测量标准误差小于±５０ｐｐｍ的数据。
This paper,based on the adsorption principle of the gas to the light,establised the mathematical model of the double optical paths measurement and the frame of the measurement system,discussed the selection of the key parameters and gave a group of data on the range of 0~9999ppm(10^-6),the standard error of online measurment of which is less than ±50ppm.
出处
《电测与仪表》
北大核心
2000年第4期27-29,共3页
Electrical Measurement & Instrumentation
关键词
二氧化硫浓度测量
紫外吸收法
电路设计
double optical paths
ultraviolet adsorption
SO_2 concentration measurement
mathematial model
