中文摘要：

基于激光光谱吸收的原理,研究了激光甲烷传感器的测量原理和系统设计,开展了实验室环境下水汽、一氧化碳和二氧化碳等气体对甲烷测量结果的交叉干扰,给出了实验数据并进行了相关分析。实验证明激光甲烷传感器具有测量准确,稳定性高,抗气体交叉干扰等特性。

英文摘要：

Based on the laser spectrum absorption and the feature of Vertical Cavity Surface Emitting Laser （ VCSEL ） wavelength scanning range up to dozens of nanometer, the methane sensor system was designed. To verify the characteristic of anti-cross interference, we made some experiments and simply analyze of the empirical data to detect the affects to the measurement results of the gas such as the H20, CO and CO2. The results prove that the laser methane sensor has the characteristics such as high stability, resistance to gas cross interference etc.