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近红外混叠吸收线光谱解析及线强测量方法研究

Spectral analysis and line strength measurement method of near-infrared overlapped absorption lines

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摘要

近年来近红外激光吸收光谱检测技术得以飞速发展,其中对吸收线的光谱解析是光谱检测的重要研究内容之一.文章建立了气体激光吸收光谱测量实验平台,重点研究了混叠吸收线光谱检测算法,以6528.8 cm-1附近氨气吸收线为例,开展了特征光谱解析实验与算法研究.结果表明,结合小波降噪方法后,信号均方根误差降低4.45倍,利用多线Voigt线型拟合算法实现混叠吸收线特征光谱解析,线型拟合残差优于±2%.实验获得了氨气在室温不同压力下的特征吸收光谱,并计算得到各条吸收线的线强参数结果.测量线强与Hitran数据库的相对偏差在5.67~8.2%之间,线强计算的不确定度约为4.6%.有效的混叠吸收线光谱解析算法可实现气体线强参数的准确测量,有益于提高氨气浓度反演的准确性.

Abstract

In recent years, near-infrared laser absorption spectroscopy detection technique has developed rapidly, and spectral analysis of absorption lines is one of the important research contents of spectrum detection. The experimental platform for gas laser absorption spectroscopy measurement was established in this study, moreover the experiment of ammonia characteristic spectroscopy analysis at 6528.8 cm-1 and algorithm research were carried out. Experimental results show that the root mean square error of the measured signal reduced 4.45 times after combined with wavelet denoising method, and the fitting residual error of overlapped absorption lines was lower than 2% by using multi-line Voigt line profile fitting algorithm. In the experiment, the ammonia characteristic absorption spectrum of different pressures at room temperature was obtained, and the line strength parameters of each absorption line were also calculated. The relative deviation between the measured results and Hitran database was between 5.67~8.2%,and the uncertainty of calculated line strength was about 4.6%. The accurate measurement of line strength by the effective spectrum analysis algorithm of overlapped absorption lines is in favor for improving the accuracy of ammonia concentration inversion.

Newport宣传-MKS新实验室计划
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中图分类号:O433.1

DOI:10.11972/j.issn.1001-9014.2018.01.019

基金项目:国家重点研发计划课题(2016YFC0201003),安徽省科技重大专项(15CZZ04124),国家环境光学监测仪器工程技术研究中心开放基金(2005DP173065-2016-02),安徽建筑大学引进人才及博士启动基金(2016QD111)

收稿日期:2017-09-04

修改稿日期:2017-09-25

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作者单位    点击查看

贾巍:安徽建筑大学 机械与电气工程学院,安徽 合肥 230601
何莹:中国科学院安徽光学精密机械研究所 中国科学院环境光学与技术重点实验室,安徽 合肥 230031
张玉钧:中国科学院安徽光学精密机械研究所 中国科学院环境光学与技术重点实验室,安徽 合肥 230031
刘建国:中国科学院安徽光学精密机械研究所 中国科学院环境光学与技术重点实验室,安徽 合肥 230031
刘文清:中国科学院安徽光学精密机械研究所 中国科学院环境光学与技术重点实验室,安徽 合肥 230031
王敏:安徽建筑大学 机械与电气工程学院,安徽 合肥 230601
张润梅:安徽建筑大学 机械与电气工程学院,安徽 合肥 230601

联系人作者:贾巍(jwaiofm@163.com)

备注:贾巍(1983-),男,安徽芜湖人,讲师,博士。 主要研究领域为大气痕量气体监测.

【1】Pantani M, Castagnoli F, D''Amato F, et al. Two infrared laser spectrometers for the in situ measurement of stratospheric gas concentration[J]. Infrared physics & technology, 2004,46(1):109-113.

【2】Barrass S, Gérard Y, Holdsworth R J, et al. Near-infrared tunable diode laser spectrometer for the remote sensing of vehicle emissions[J]. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2004,60(14): 3353-3360.

【3】Michopoulos P, Baloutsos G, Economou A, et al. Effects of nitrogen deposition on nitrogen cycling in an Aleppo pine stand in Athens, Greece[J]. Science of the Total Environment, 2004, 323: 211-218.

【4】Fenn M E, Baron J S, Allen E B, et al. Ecological effects of nitrogen deposition in the western United States[J]. BioScience, 2003, 53(4): 404-420.

【5】imecˇková M, Jacquemart D, Rothman L S, et al. Einstein A-coefficients and statistical weights for molecular absorption transitions in the HITRAN database[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 2006, 98(1):130-155.

【6】Fischer J, Gamache R R, Goldman A, et al. Total internal partition sums for molecular species in the 2000 edition of the HITRAN database[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 2003, 82(1): 401-412.

【7】Pogány A, Werhahn O, Ebert V. High-Accuracy Ammonia Line Intensity Measurements at 1.5 μm[C]. Laser Applications To Chemical, Security and Environmental Analysis, 2016.

【8】Bozóki Z, rpád Mohácsi, Szabó G, et al. Near-Infrared Diode Laser Based Spectroscopic Detection of Ammonia: A Comparative Study of Photoacoustic and Direct Optical Absorption Methods[J]. Applied Spectroscopy, 2002, 56(6): 715.

【9】Lundsberg-Nielsen L. Hegelund F, Nicolaisen F M. Analysis of the High-Resolution Spectrum of Ammonia (14NH3) in the Near-Infrared Region, 6400~6900 cm-1. Journal of Molecular Spectroscopy, 1993, 162: 230-245.

【10】Webber M E. Diode laser measurements of NH3 and CO2 for combustion and bioreactor applications [D]. Degree of Doctor of Philosophy, 2001, 18-27.

【11】Mihalcea R M, Baer D S, Hanson R K. Diode-Laser Absorption Measurements of CO2 Near 2.0 μm at Elevated Temperatures[J]. Applied Optics, 1998, 37(36): 8341-8347.

【12】Fan Qi-Bin. Wavelet Analysis[M]. Wuhan: Wuhan University Press (樊启斌. 小波分析[M]. 武汉大学出版社), 2008, 301-302.

【13】Li Jing-Song, Yu Ben-Li, Horst Fischer. Wavelet Transform Based on the Optimal Wavelet Pairs for Tunable Diode Laser Absorption Spectroscopy Signal Processing[J]. Applied Spectroscopy, 2015, 69(4):496-506.

【14】Gao Yan-Wei, Zhang Yu-Jun, Chen Dong, et al. Tunable Diode Laser Absorption Spectroscopy for Detection of Hydrogen Fluoride[J]. Acta Photonica Sinica (高彦伟, 张玉钧, 陈东等. 可调谐二极管激光吸收光谱氟化氢检测[J]. 光子学报), 2015, 44(6): 630003.

【15】McLean A B, Mitchell C E J. Implementation of an efficient analytical approximation to the Voigt function for photoemission lineshape analysis[J]. Journal of Electron Spectroscopy and Related Phenomena, 1994, 69(2): 125-132.

引用该论文

JIA Wei,HE Ying,ZHANG Yu-Jun,LIU Jian-Guo,LIU Wen-Qing,WANG Min,ZHANG Run-Mei. Spectral analysis and line strength measurement method of near-infrared overlapped absorption lines[J]. Journal of Infrared and Millimeter Waves, 2018, 37(1): 106-111

贾巍,何莹,张玉钧,刘建国,刘文清,王敏,张润梅. 近红外混叠吸收线光谱解析及线强测量方法研究[J]. 红外与毫米波学报, 2018, 37(1): 106-111

被引情况

【1】贾 巍,何 莹. 结合环境参数修正的高温气体光谱检测系统设计. 应用光学, 2018, 39(6): 809-814

【2】王迪,倪子颜,王明吉,吕妍,李玉爽,李栋. 调制噪声下激光检测气体吸收光谱信号处理研究. 光子学报, 2019, 48(3): 307001--1

【3】李唐安,李世阳,张家明,孙 轩,郭荣静. 基于Goertzel算法的红外气体检测方法. 红外与激光工程, 2019, 48(3): 304003--1

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