4、供了数据参考。3)测量了柴油挥发气,CO,CO2气体在中红外波段上的吸收光谱,并从成分组成,分子结构等方面分析测量结果。结果表明,利用不同种类气体在中红外波段不同的吸收峰位置,可以准确区分汽油和柴油挥发气,以及CO,CO2混合气体,并测量其对应组分浓度。4)将远程气体监测技术应用于TDLAS系统,根据系统原理利用软件进行了仿真。实验以CO气体为例,对软件锁相算法进行了验证,测量了不同浓度,不同温度下的CO二次谐波峰值。关键词:傅里叶变换光谱气体监测汽油挥发气参数分析ABSTRACTThis thesisis aimed at th
5、e research on theremote gas monitoring technology and application based on FourierTransform Spectroscopy(FTIR).Based on the theory of remote gas monitoringtechnology (RGMT), aremote gas monitoring systembased on FTIRis designed and constructed, which is used to measur
6、edifferent typeof gas atdifferent concentration.We also apply theRGMT into Tunable Diode Laser Absorption Spectroscopy(TDLAS) system, and use it to measure the concentretion of CO gas.The major work of the thesis is as follows:1) We built the mathematical modelofRGMT
7、and analyzedthe factors which affectedgas concentration during the sampling process. Through making thetheoretical analysis and simulation,welaid the foundation ofsystem construction and future experiments.2) A remote gas monitoring systembased on FTIRis designed and
8、constructed.We introduced the design and algorithm of the system, which was used to detect the gasoline vapors.The results s