中文题目: 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CO_2的测量
外文题目: Measurement of Open-Path Atmospheric CO_2 Based on Tunable Diode Laser Absorption Spectroscopy
作者: 信丰鑫; 郭金家; 孙加运; 马玲; 李杰; 夏晖晖; 刘继桥; 刘智深
刊名: 大气与环境光学学报
年: 2017 卷: 12 期: 4 页： 269--275
中文关键词:
可调谐半导体激光吸收光谱; 长光程; 直接吸收; 二氧化碳
英文关键词:
tunable diode laser absorption spectroscopy; open-path; direct absorption; carbon dioxide
中文摘要:
CO_2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CO_2浓度对了解地区CO_2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CO_2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CO_2进行了连续测量。通过与手持CO_2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CO_2提供了一种重要的思路与方法。

英文摘要:
CO_2 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 CO_2 concentration has important significance in understanding the. periodic changes of CO_2 and the inherent law of climate change. Based on tunable diode laser absorption spectroscopy (TDLAS) technology, the absorption line of CO_2 near 2004 nm was selected, the open-path atmospheric CO_2 was continuously measured by direct absorption processing method. Compared with a hand-held CO_2 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 CO_2 measurement instrument, and the feasibility of experiment system is proved. It provides an important way and a method for the domestic remote sensing of CO_2 with laser.


文献类型: 期刊论文
正文语种: Chinese
收录类别: CSCD
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