| 光谱学与光谱分析 |
|
|
|
|
|
| Study on the Arithmetic of Absorbance Inversion Based on Tunable Diode-Laser Absorption Spectroscopy |
| XU Zhen-yu, LIU Wen-qing*, KAN Rui-feng, ZHANG Yu-jun, LIU Jian-guo, ZHANG Shuai, SHU Xiao-wen, GENG Hui, HE Ying, TANG Yuan-yuan |
| Key Lab of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China |
|
|
|
|
Abstract Tunable diode-laser absorption spectroscopy techniques have been widely used in many regions，such as environmental monitoring and detection of industrial process，due to their high spectral resolution，high sensitivity，fast time response and non-intrusive character. It’s important to obtain absorbance curve and integrated absorbance for gas concentration inversion and line strength calibration in direct-absorption spectroscopy techniques. An approach was taken to process the laser direct absorption spectrum. First a low-order polynomial baseline fitting was carried on sub-regions of the transmitted signal to eliminate the effect of diode-laser output fluctuation and obtain the absorbance curve. Then integrated absorbance can be inverted through line-shape fitting using Levenberg-Marquardt non-linear least-squares fitting method. This approach was verified by experimental processing of absorption lines of water vapor.
|
|
Received: 2009-10-26
Accepted: 2010-01-18
|
|
|
|
Corresponding Authors:
LIU Wen-qing
E-mail: wqliu@aiofm.ac.cn
|
|
[1] Curl R F, Tittel F K. Annu. Rep. Prog. Chem, Sect. C, 2002, 98: 219.
[2] Rothman L S, Jacquemart D, Barbe A, et al. Journal of Quantitative Spectrosc. Radiat. Transfer., 2005，96: 139.
[3] Allen M G. Meas. Sci. Technol., 1998, 9: 545.
[4] Zhou Xin. Diode-Laser Absorption Sensors for Combustion Control. TSD Report 161，Stanford University，2005.
[5] Leleux Darrin Paul. Novel Laser-Based Gas Sensors for Trace Gas Detection in a Spacecraft Habitat. Houston: Rice University, 2002.
[6] Press William H, Flannery Brian P, et al. Numerical Recipes in C++: The Art of Scientific Computing. 2nd ed. UK：Cambridge University Press, 1997.
[7] Arroyo M P，Hanson R K. Appl. Opt., 1993, 32: 6104.
|
| [1] |
LI Xin1, SU Cheng-zhi1,2*, YU Dan-yang1, SHENG Yu-bo1, CHANG Chuan1, SHI Lei1, JIANG Ji-guang1. Study on the Influence of Wavelength and Low Temperature on COD Detection by Ultraviolet Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(08): 2403-2408. |
| [2] |
CAO Hai-qing, HAN Tong-shuai, LIU Xue-yu, LIU Jin*. Extracting Linear Attenuance of Analyte in Turbid Scattering Media and Prediction Model Transfer Based Thereon[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(12): 3711-3717. |
| [3] |
ZHANG Yan1, 2, ZHOU Shi-sheng2*, CAO Cong-jun2, REN Peng-gang2. An Absorbance-Based Prediction Method of Spot Color Formula for PET Film[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(02): 415-420. |
| [4] |
WANG Jin-hai1, LIU Dong-yuan1, 2, WANG Hui-quan1*, ZHANG Yan-jun2, SUN Qiu-ming2, MA Jun2. Application of Multi-Channel Differential Optical Density on the Fast Determination of the Intracranial Hematomas Degree[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(10): 3205-3209. |
| [5] |
BI Wei-hong1*, CHEN Jun-gang1，2, ZHANG Sheng1, ZHOU Kun-peng1, YU Teng-fei1, HOU Xu-tao1. Study on Spectrophotometric Determination of Zinc Ion[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(06): 1938-1943. |
| [6] |
NIE Wei1, 2, YE Qing-hao3, XU Zhen-yu1, ZHANG Guang-le1, XIA Hui-hui1, 2, KAN Rui-feng1* . Study on the Method of Voigt Profiles Two Wings Fitting Non-Uniform Flow Field Absorbance [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(03): 816-821. |
| [7] |
SU Hai-xia, ZHANG Zhao-hui, ZHAO Xiao-yan*, LI Zhi, YAN Fang, ZHANG Han . The Lambert-Beer’s Law Characterization of Formal Analysis in Terahertz Spectrum Quantitative Testing[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(12): 3180-3186. |
| [8] |
WU Guo-qing, BI Wei-hong*, FU Guang-wei, LI Jian-guo, JI Hong-yue . The Turbidity and pH Impact Analysis of Low Concentration Water Chemical Oxygen Demand Ultraviolet Absorption Detection [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(11): 3079-3082. |
| [9] |
ZHAO You-quan1, LI Yu-chun1, GUO Yi1, GU Bai-jun2, YANG Zhen2 . A Novel Technology for Water Quality Testing Based on UV Spectral Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(05): 1301-1305. |
| [10] |
WANG Hui-feng1, JIANG Xu-qian2 . In-Situ Monitoring Algorithm of Gases Poisonous Elements Concentration with Ultraviolet Optical Absorption Spectroscopy Based on Recursion Iterative Method [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(01): 171-174. |
| [11] |
TANG Guang-hua, XU Chuan-long, SHAO Li-tang, YANG Dao-ye, ZHOU Bin, WANG Shi-min . Research on In-Situ Monitoring of SO2 Concentration in the Flue Gases with DOAS Method Based on Algorithm Fusion [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(04): 1036-1040. |
| [12] |
LI Wei1,2,KE Yong1,HE Guang-she3,XU Yong-cheng1,WANG Zhen-yuan1* . Study on the Correlation between PMI and OD Changes in Rat’s Plasma[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(12): 2944-2946. |
| [13] |
Mansur ARKIN1,Awut PARWEN2,Amat AYNUR1,Rahman MIHRIGUL1,Amat AMINAM1. Examination of Animal RBC,Hb and Human Skin Surface Blood Stream in Oxygenation-Deoxidization Conditions Using Different Spectrum Techniques[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(03): 633-637. |
| [14] |
ZHANG Xiao-dong1, ZHAO Yuan-li2, GUO Tao3, WANG Lei-ming4, GE Xiang-hong2, LUO Lei2 . Study on Absorption Spectra of Malignant Plasma of Esophagus[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(08): 1533-1535. |
| [15] |
WU Xin-sheng1,2,XIE Yi-min1, 3, LIU Huan-bin1,WU Hong1 . Study on Near-Infrared Absorption Mechanism of Alkali Lignin[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(06): 1031-1033. |
|
|
|
|
