Acta Photonica Sinica, Volume. 50, Issue 4, 198(2021)
Cross Interference Characteristics of Photoacoustic Spectroscopy Multi-gas Analyzer
Figures & Tables(11)
Fig. 1. Schematic diagram of the photoacoustic spectroscopy based multi-gas analyzer
Fig. 2. Picture of the photoacoustic spectroscopy based multi-gas analyzer
Fig. 4. Test system of the photoacoustic spectroscopy based multi-gas analyzer
Fig. 9. The relationship between photoacoustic signal value of water vapor and concentration and the interference of water vapor to the gas to be measured.
Table 1. Selection of the center wavelength and bandwidth of the filter
View tableView in ArticleTable 1. Selection of the center wavelength and bandwidth of the filter
Gas tape Center wavelength/μm Bandwidth/μm CH4 3.22 0.06 C2H6 3.34 0.07 C2H4 10.60 0.85 C2H2 3.05 0.10 CO 4.69 0.17 CO2 4.27 0.15 H2O 6.08 0.20
Table 2. The relationship between relative humidity and temperature of saturated salt solution
View tableView in ArticleTable 2. The relationship between relative humidity and temperature of saturated salt solution
Tmperature/℃ 15 20 25 30 35 MgCl2 33.3±0.3 33.1±0.2 32.8±0.2 32.4±0.2 32.1±0.2 NaCl 75.6±0.2 75.5±0.2 75.3±0.2 75.1±0.2 74.9±0.2
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Shuai YUAN, Guangzhen WANG, Dehui FU, Ke CHEN, Ran AN, Bo ZHANG, Min GUO, Guangyin ZHANG. Cross Interference Characteristics of Photoacoustic Spectroscopy Multi-gas Analyzer[J]. Acta Photonica Sinica, 2021, 50(4): 198
Paper Information
Category: Spectroscopy
Received: Nov. 2, 2020
Accepted: Dec. 15, 2020
Published Online: May. 11, 2021
The Author Email: CHEN Ke (chenke@dlut.edu.cn)
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