基于TDLAS技术气体浓度测量的温度修正方法  

Temperature correction method for gas concentration measurement based on TDLAS technology

作　　者：王婷 韩志洋 俞跃[1] 王文琴 胡斌[1] WANG Ting;HAN Zhi-yang;YU Yue;WANG Wen-qin;HU Bin(Key Laboratory of Nondestructive Testing and Evaluation for State Market Regulation,China Special Equipment Inspection&Research Institure,Beijing 100029,China;School of Advanced Manufacturing,Nanchang University,Nanchang 330031,China)

机构地区：[1]中国特种设备检测研究院,国家市场监管重点实验室(无损检测与评价),北京100029 [2]南昌大学先进制造学院,江西南昌330031

出　　处：《激光与红外》2024年第2期208-213,共6页Laser & Infrared

基　　金：中国特检院青年基金项目(No.2021青年09)资助。

摘　　要：精确检测气体浓度在大气环境保护、工业生产控制、废气排放监测等领域有着迫切需求。可调谐二极管激光吸收光谱技术(TDLAS)是实现气体浓度精确检测的重要方法,然而温度变化却为浓度精确测量带来较大误差,因而对检测结果进行温度修正是十分必要的。本文从理论角度出发,阐述了TDLAS技术检测气体浓度的温度影响机理,重点分析并归纳了基于TDLAS技术的气体浓度测量的温度影响修正方法,并展望了其发展趋势。Accurate detection of gas concentration is in urgent demand in the fields of atmospheric environmental protection,industrial production control,and exhaust emission monitoring.Tunable diode laser absorption spectroscopy(TDLAS)is an important method for achieving accurate detection of gas concentration.However,temperature variations bring significant errors to the accurate measurement of concentration,making temperature correction of the results essential.In this paper,the mechanism of temperature influence of gas concentration detection by TDLAS technology is described and the temperature influence correction methods for gas concentration measurement based on TDLAS technology is focused on analyzing and summarizing,and the trend of its development is envisioned.

关 键 词：TDLAS 直接吸收 波长调制 浓度测量 温度修正 

分 类 号：TN249[电子电信—物理电子学] X831[环境科学与工程—环境工程]