基于可调谐半导体激光吸收光谱技术对开放式长光程大气CO2的测量

大气与环境光学学报 ›› 2017, Vol. 12 ›› Issue (4): 269-275.

基于可调谐半导体激光吸收光谱技术对开放式长光程大气CO2的测量

信丰鑫1，郭金家1，孙加运2，马玲1，李杰1，夏晖晖3，刘继桥4，刘智深1*

（1 中国海洋大学海洋遥感研究所，山东青岛 266003；
2 山东科技大学测绘科学与工程学院，山东青岛 266590；
3 中国科学院安徽光学精密机械研究所，安徽合肥 230031；
4 中国科学院上海光学精密机械研究所，上海 201800）

收稿日期:2016-07-23 修回日期:2016-10-12 出版日期:2017-07-28 发布日期:2017-07-19
通讯作者: 刘智深 (1938-)，男,汉族,上海人，教授，主要从事海洋光学和激光雷达探测方面的研究。 E-mail:zsliu@ouc.edu.cn
作者简介: 信丰鑫 (1989-)，男，汉族，山东济南人，研究生，主要从事大气激光雷达和大气CO2激光检测技术方面的研究。
基金资助:
民用航天项目(1150231-CAO)资助

Measurement of Open-Path Atmospheric CO2 Based on Tunable Diode Laser Absorption Spectroscopy

XIN Fengxin1, GUO Jinjia1, SUN Jiayun2, MA Ling1, LI Jie1, XIA Huihui3, LIU Jiqiao4, LIU Zhishen1*

(1 Ocean Remote Sensing Institute, Ocean University of China, Qingdao 266003, China;
2 College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, China;
3 Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
4 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China)

Received:2016-07-23 Revised:2016-10-12 Published:2017-07-28 Online:2017-07-19
Supported by:
Supported by Civil Aerospace Program(1150231-CAO)

摘要/Abstract

摘要：

CO2是地球大气中第三大含量的痕量气体，对温室效应影响最大，主要来源于人类的日常活动，测量大气CO2浓度对了解地区CO2的周期性变化与气候变化的内在规律有重要意义。基于可调谐半导体激光吸收光谱（tunable diode laser absorption spectroscopy, TDLAS）技术，系统选择CO2在2004 nm附近的吸收线，采用直接吸收光谱处理方法，对开放式长光程大气下的CO2进行了连续测量。通过与手持CO2测量仪的对比测量，二者的相关系数达到0.8371，二者的标准偏差为7.204 ppm，测量结果的变化趋势符合较好，证明了实验系统的可行性，为国内激光遥测CO2提供了一种重要的思路与方法。

关键词: 可调谐半导体激光吸收光谱, 长光程, 直接吸收, 二氧化碳

Abstract:

CO2 concentration has ranked the third of all the trace gas in the earth's atmosphere, and exerts a tremendous influence on greenhouse effect. It mainly comes from human's daily activities. Detecting atmospheric CO2 concentration has important significance in understanding the periodic changes of CO2 and the inherent law of climate change. Based on tunable diode laser absorption spectroscopy (TDLAS) technology, the absorption line of CO2 near 2004 nm was selected, the open-path atmospheric CO2 was continuously measured by direct absorption processing method. Compared with a hand-held CO2 measurement instrument, their correlation coefficient is 0.8371, and the standard deviation is 7.204 ppm. The results show good consistency between the TDLAS and hand-held CO2 measurement instrument, and the feasibility of experiment system is proved. It provides an important way and a method for the domestic remote sensing of CO2 with laser.

Key words: tunable diode laser absorption spectroscopy, open-path, direct absorption, carbon dioxide

中图分类号:

o433
X13

信丰鑫郭金家孙加运马玲李杰夏晖晖刘继桥刘智深. 基于可调谐半导体激光吸收光谱技术对开放式长光程大气CO2的测量[J]. 大气与环境光学学报, 2017, 12(4): 269-275.

SHEN Feng-Xin, GUO Jin-Jia, SUN Jia-Yun, MA Ling, LI Jie, XIA Hui-Hui, LIU Ji-Qiao, LIU Zhi-Shen. Measurement of Open-Path Atmospheric CO2 Based on Tunable Diode Laser Absorption Spectroscopy[J]. Journal of Atmospheric and Environmental Optics, 2017, 12(4): 269-275.

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