Measurement of SO2 Using Differential Optical Absorption Spectroscopy Based Fourier Transform Filtering

Hai Ming Zheng; Zhen Liang Dong; Dong Shui  Xie; Xiao Xiao Shang

doi:10.4028/www.scientific.net/AMR.571.234

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 571Measurement of SO2 Using Differential Optical...

Measurement of SO₂ Using Differential Optical Absorption Spectroscopy Based Fourier Transform Filtering

Abstract:

Differential Optical Absorption Spectroscopy(DOAS) is widely used to determine concentrations of atmospheric species. This paper makes a measurement of SO₂ using DOAS based on LabVIEW, and compare the concentrations retrieved by the least squares method and the way of Fourier transform filtering. Experiment results indicate that the Fourier transform filtering is superior to the least squares method for monitoring a single SO₂ ingredients.

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Periodical:

Advanced Materials Research (Volume 571)

Pages:

234-238

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.571.234

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Online since:

September 2012

Authors:

Hai Ming Zheng, Zhen Liang Dong, Dong Shui Xie, Xiao Xiao Shang

Keywords:

Differential Optical Absorption Spectroscopy, Fourier Transform Filtering, Least-Square Method (LSM), Polynomial Fitting

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