摘要
可调谐激光二极管吸收光谱学(TDLAS)技术测量燃烧过程相关分子(CO2、NOx等)参数的原理是基于比尔-朗伯(Beer-Lambert)定律,即通过被测气体的入射光强与经被测气体吸收后的出射光强的比值与气体浓度、温度等存在特定的数学关系。文章描述仅用一个TDL同时测量CO2分子浓度和温度的原理与系统实现方案。
The principle of TDLAS （tunable diode laser absorption spectroscopy） is the Beer-Lambert law which remotely measures the parameters of concerned gas molecule in combustion processes. The fractional transmission is the ratio of transmitted and incident laser intensities, and has fixed mathematics relationship with the concentration and temperature of the gas. This paper presents the principle of simultaneous measurements of CO2 concentration and temperature by using only one TDL and system implementation of the measurement.
出处
《自动化与信息工程》
2006年第4期8-11,共4页
Automation & Information Engineering
基金
广东省科学计划项目(No.2003A3040301)资助
