CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES
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The Influences of Temperature, Concentration and Pressure Uncertainties on the Measurement Results of Wavelength Modulation Spectroscopy
CHE Lu, DING Yan-Jun** , PENG Zhi-Min
State Key Laboratory of Power Systems, Department of Thermal Engineering, Tsinghua University, Beijing 100084
The Influences of Temperature, Concentration and Pressure Uncertainties on the Measurement Results of Wavelength Modulation Spectroscopy
CHE Lu, DING Yan-Jun** , PENG Zhi-Min
State Key Laboratory of Power Systems, Department of Thermal Engineering, Tsinghua University, Beijing 100084
Abstract ：Gas temperature, species concentration, and pressure uncertainties inevitably affect the measurement results of wavelength modulation spectroscopy. We analyze and calculate the influences of these uncertainties on CO2 concentration and temperature measurement results. Calculation results show that uncertainties in the pressure and CO2 concentration have little influence on temperature measurement results. On the contrary, CO2 concentration measurement results are notably influenced by pressure uncertainty, and greatly influenced by temperature uncertainty. To solve these problems in the temperature, species concentration, and pressure uncertainties, we take the experimental data from the previous study and analyze them using the iteration method with the purpose of obtaining the optimal values of gas temperature and CO2 concentration.
收稿日期: 2012-12-22
出版日期: 2012-05-31
:
78.40.-q
(Absorption and reflection spectra: visible and ultraviolet)
78.30.-j
(Infrared and Raman spectra)
42.68.Ca
(Spectral absorption by atmospheric gases)
引用本文:
CHE Lu, DING Yan-Jun, PENG Zhi-Min. The Influences of Temperature, Concentration and Pressure Uncertainties on the Measurement Results of Wavelength Modulation Spectroscopy[J]. 中国物理快报, 2012, 29(6): 67801-067801.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/29/6/067801
或
https://cpl.iphy.ac.cn/CN/Y2012/V29/I6/67801
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2012, Vol. 29 
