河北大学学报(自然科学版) ›› 2022, Vol. 42 ›› Issue (3): 246-250.DOI: 10.3969/j.issn.1000-1565.2022.03.004

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利用傅里叶红外光谱研究SF6中SO2含量

李明洋1,马晓燕1,赵静2,袁小先1,李旭1,关丽1   

  • 收稿日期:2021-08-31 出版日期:2022-05-25 发布日期:2022-06-16
  • 通讯作者: 袁小先(1985—)
  • 作者简介:李明洋(1994—),男,河北石家庄人,河北大学在读硕士研究生,主要从事阻变存储材料及器件研究.
    E-mail:lmy15100165566@163.com
  • 基金资助:
    国家自然科学基金资助项目(51802069);河北大学研究生创新资助项目(HBU2021SS062)

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. 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

摘要: 在SF6作为绝缘物质的设备中,SF6中SO2含量的精确测定,有助于预测设备中SF6的纯度.利用傅里叶红外光谱仪测试SF6标样中不同SO2含量的吸收光谱,构建SO2体积分数与特征峰吸光度之间的关系,得到标准工作曲线.为了提高实验精度,选用能够多次反射的气体样品池.结果表明,该实验装置和方法可以应用到实际生产中电力开关设备内SF6的监测.

关键词: SF6, SO2, 傅里叶变换红外光谱, 标准工作曲线

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

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