差分吸收式甲烷气体传感系统研究

Research on the Differential Absorption of Methane Gas Sensor System

该系统在系统设计、光源处理、气室的选择等方面对传统的实验系统进行了改进。消除了光源波动和光路干扰,解决了其他气体对甲烷气体测量的交叉干扰,测量精度也随之提高。经多次试验,系统重复性、稳定性良好。通过更换光源或不同中心波长的滤波片,该系统还可用于其他气体的测量,有很好通用性。

This system improved the traditional experimental system in several aspects,such as system design,lighting disposal.It eliminated fluctuations in the light source and optical interference,and solved other gases methane gas measurement of the cross-interference,and also improved the measurement accuracy.After several experiments,the reproducibility and stability of the system were very well.Through the replacement of light or different wavelength of the filter,the system could also be used for the measurement of other gases,has good common.