TDLAS燃烧气体温度测量吸收谱线对的选择  

Absorption spectrum lines selection in temperature measurement by TDLAS

作　　者：刘国耀 沈德明 陈俊杰[3] 赖小明 芮正新 卢荣军[3] 

机构地区：[1]南京科远自动化集团股份有限公司,江苏南京211102 [2]江苏省热工过程控制重点实验室,江苏南京211102 [3]东南大学仪器工程与科学学院,江苏南京210096

出　　处：《激光与红外》2015年第9期1034-1039,共6页Laser & Infrared

摘　　要：高温气体的温度场测量,一直以来是一项重大科研课题,而利用可调谐二极管激光吸收光谱法(TDLAS)测量燃烧气体温度的基础是吸收谱线对的选择。本文首先系统地给出吸收分子及其谱线对的选择标准,而后重点对HITEMP数据库中1547.72 nm附近的水分子吸收谱线进行研究与筛选,通过仿真分析验证了谱线对6460.595 cm-1和6461.271 cm-1适合用于TDLAS高温气体温度测量系统,最后通过搭建的实验设备验证了这一对吸收谱线对很适合用作氢气或碳氢化合物做燃料的高温气体的温度测量,对TDLAS温度场测量系统的设计具有参考意义。The temperature measurement of high temperature gas has always been an important scientific research task. The absorption line selection is the foundation of temperature measurement using tunable diode laser absorption spectroscopy（TDLAS）. A selection criterion of absorption molecule and its spectrum lines are firstly given. Then, H2O molecular absorption spectrum lines in HITEMP database around 1547.72 nm are studied and selected. It is proved by simulation that the absorption spectrum lines of 6460. 595 cm^- 1 and 6461.271 cm^- 1 are suitable for TDLAS temperature measurement. A pair of spectrums which are suitable for temperature measurement of hydrogen or hydrocarbon combustion are experimentally tested at last,which provide a reference for the design of TDLAS temperature measuring system.

关 键 词：激光光谱学 吸收谱线对选择 TDLAS 温度测量 HITEMP数据库 

分 类 号：O433.1[机械工程—光学工程]