Study on the content of SO2 in SF6 by the Fourier transform infrared spectrum

doi:10.3969/j.issn.1000-1565.2022.03.004

Journal of Hebei University(Natural Science Edition) ›› 2022, Vol. 42 ›› Issue (3): 246-250.DOI: 10.3969/j.issn.1000-1565.2022.03.004

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Study on the content of SO₂ in SF₆ by the Fourier transform infrared spectrum

LI Mingyang¹, MA Xiaoyan¹, ZHAO Jing², YUAN Xiaoxian¹, LI Xu¹, GUAN Li¹

1.College of Physics Science and Technology, Hebei University, Baoding 071002, China; 2.Security Department, Hebei University, Baoding 071002, China

Received:2021-08-31 Online:2022-05-25 Published:2022-06-16

Abstract

Abstract: The SF₆ gas has been used as insulation and has been applied in some power equipments.The precise determination of SO₂ concentration in SF₆ is helpful to predict the purity of SF₆.Fourier transform infrared(FTIR)spectrometer was used to measure the absorption spectra of SO₂ of different concentrations in SF₆ standard samples, and the relationship between SO₂ concentration and characteristic peak absorption was constructed to obtain the standard working curve.In order to improve the accuracy of the experiment, a multi-refletion gas cell was selected.The results show that the experimental device and method can be applied to the monitoring of SF₆ in power switching equipment in real life.

Key words: SF₆, SO₂, FTIR spectroscopy, standard working curve

CLC Number:

O433.4

LI Mingyang, MA Xiaoyan, ZHAO Jing, YUAN Xiaoxian, LI Xu, GUAN Li. Study on the content of SO₂ in SF₆ by the Fourier transform infrared spectrum[J]. Journal of Hebei University(Natural Science Edition), 2022, 42(3): 246-250.

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Study on the content of SO₂ in SF₆ by the Fourier transform infrared spectrum

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