摘要
介绍了一种基于气体滤波相关原理的隧道CO浓度测量方法及其关键技术。采用气体相关滤波原理,只需单光路,不需要参考光路,也不需要对样气采样,具有抗干扰能力强、实时性好的特点。建立了气体滤波相关原理的详细数学理论模型,对接收探测器的选取及其恒温控制提出了相应解决方案并进行了详细说明。通过实验样机验证了整个方案的可行性。
The measuring method for CO concentration in tunnel based on gas filter correlation principle and its key techniques are presented. By adopting the principle of gas filte, only single light trace is needed, while the reference light, and gas sampling are not necessary. The method features high anti-interference and good real-time performance. The detail mathematical theory model of gas filte correlation principle is established, the selection of receiving detector, and the relevant solutions for constant temperature control are described in detail. The feasibility of the whole strategy has been verified through experimental prototype.
出处
《自动化仪表》
CAS
2008年第12期14-17,共4页
Process Automation Instrumentation
关键词
气体滤波相关
一氧化碳
浓度测量
PbSe探测器
恒温控制
PID
Gas filter correlation Carbon monoxide Concentration measurement PbSe detector Constant temperature control PID
