基于傅里叶变换的差分吸收光谱法测量NH_3和SO_2浓度的实验研究

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 空间激光信息技术研究中心

	基于傅里叶变换的差分吸收光谱法测量NH_3和SO_2浓度的实验研究
	郁敏捷 ; 刘铭晖 ; 董作人 ; 孙延光 ; 蔡海文 ; 魏芳
刊名	中国激光
	2015
卷号	42 期号:9 页码:915001
其他题名	Study on Measuring Concentration of Ammonia and Sulphur Dioxide by Differential Optical Absorption Spectrometry Based on Fast Fourier Transform
通讯作者	Yu Minjie, Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Liu Minghui, Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Dong Zuoren, Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Sun Yanguang, Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Cai Haiwen, Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Wei Fang, Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
中文摘要	针对氨气(NH_3)和二氧化硫(SO_2)气体吸收谱线在196~214 nm波段区域存在谱线重叠的问题,在采用傅里叶变换的差分吸收光谱法测量气体浓度基础上,采用分波段方法,解决NH_3和SO_2特征频谱相互串扰对测量的影响,采用非线性修正方法,解决在SO_2高浓度情况下出现的非线性吸收对NH_3气体测量的影响,采用经验模态分解(EMD)降噪处理方法,提高信噪比,最终实现对NH_3和SO_2气体浓度的同时准确测量。实验结果显示,NH_3各个浓度测量误差均在0.15 mL/m~3以内,相对误差不超过1.5%,最低可探测浓度为1.5 mL/m~3;SO_2各个浓度测量误差均在2 mL/m~3以内,相对误差不超过1%,最低可探测浓度为16 mL/m~3。
英文摘要	For the overlap of the absorption spectrum of NH_3 and SO_2 from 196 nm to 214 nm, based on differential optical absorption spectrometry and fast Fourier transform to measure concentration of gases, a method that detecting these two gases simultaneously at two wave length bands is proposed. The crosstalk effects between the characteristic spectrum of NH_3 and SO_2 are solved. The interference of SO_2 to NH_3 which is caused by the nonlinearity of the absorption of SO_2 with the increase of its concentration within 196~214 nm wavelength band is corrected, then the real concentration of NH_3 are obtained. The signal to noise ratio is improved by empirical mode decomposition (EMD) noise reduction method. The measurement error of NH_3 concentration is within 0.15 mL/m~3, ang the relative error is less than 1.5%. The detectable concentration limit is 1.5 mL/m~3. For SO_2, the measurement error is within 2 mL/m~3, and the relative error is less than 1%. The detectable concentration limit is 16 mL/m~3.
收录类别	EI
原文出处	http://www.opticsjournal.net
语种	中文
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/13945]
专题	上海光学精密机械研究所_空间激光信息技术研究中心
作者单位	1.郁敏捷, 中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800, 中国. 2.刘铭晖, 中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800, 中国. 3.董作人, 中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800, 中国. 4.孙延光, 中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800, 中国. 5.蔡海文, 中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800, 中国. 6.魏芳, 中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800, 中国.
推荐引用方式 GB/T 7714	郁敏捷,刘铭晖,董作人,等. 基于傅里叶变换的差分吸收光谱法测量NH_3和SO_2浓度的实验研究[J]. 中国激光,2015,42(9):915001.
APA	郁敏捷,刘铭晖,董作人,孙延光,蔡海文,&魏芳.(2015).基于傅里叶变换的差分吸收光谱法测量NH_3和SO_2浓度的实验研究.中国激光,42(9),915001.
MLA	郁敏捷,et al."基于傅里叶变换的差分吸收光谱法测量NH_3和SO_2浓度的实验研究".中国激光 42.9(2015):915001.