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.
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
.
DOI: 10.3969/j.issn.1000-1565.2022.03.004
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