激光与光电子学进展, 2018, 55 (5): 053003, 网络出版: 2018-09-11
基于TDLAS技术测量高温环境中CO2的温度和浓度 下载: 1516次
Measurements of CO2 Temperature and Concentration in High Temperature Environment Based on Tunable Diode Laser Absorption Spectroscopy
光谱学 可调谐激光吸收光谱 高温环境 CO2 温度测量 浓度测量 spectroscopy tunable diode laser absorption spectroscopy high temperature environment carbon dioxide temperature measurement concentration measurement
摘要
基于可调谐半导体激光吸收光谱(TDLAS)技术,研究了高温环境中CO2温度和浓度的测量方法。选取位于4996 cm
-1附近的CO2吸收谱线作为高温环境中对CO2温度和浓度进行测量的目标谱线对。对气体吸收池内不同温度(873~1273 K)、不同CO2体积分数(4%~10%)的CO2/N2混合气体的温度以及CO2的浓度进行了在线测量。结果表明:测量温度与设定温度的平均偏差为2.07%,峰值偏差为3.49%;测量得到的CO2浓度与配比浓度的平均偏差为2.25%,峰值偏差为4.75%。该测量方法精确可靠,为高温环境中CO2的测量提供了一种新的技术手段。
Abstract
Based on tunable diode laser absorption spectroscopy technique, the measurement method of CO2 temperature and concentration in high temperature environment is studied. The CO2 absorption line near 4996 cm
-1 is selected as the target detection line to measure CO2 temperature and concentration in high temperature environment. The CO2 concentration and temperature of CO2/N2 mixed gas in the gas absorption cell at different temperatures (873-1273 K) and different CO2 volume fraction (4%-10%) are measured. The results show that, compared with the setting values, the average deviation and peak deviation of the measured temperature are 2.07% and 3.49%, respectively. The average deviation and peak deviation of the measured concentration are 2.25% and 4.75%, respectively. The results indicate that the proposed method is accurate, and it provides references for CO2 detection in the high temperature environment.
崔海滨, 王飞, 李玫仪. 基于TDLAS技术测量高温环境中CO2的温度和浓度[J]. 激光与光电子学进展, 2018, 55(5): 053003. Haibin Cui, Fei Wang, Meiyi Li. Measurements of CO2 Temperature and Concentration in High Temperature Environment Based on Tunable Diode Laser Absorption Spectroscopy[J]. Laser & Optoelectronics Progress, 2018, 55(5): 053003.