利用傅里叶红外光谱研究SF_(6)中SO_(2)含量  

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

作　　者：李明洋 马晓燕[1] 赵静[2] 袁小先 李旭[1] 关丽[1] LI Mingyang;MA Xiaoyan;ZHAO Jing;YUAN Xiaoxian;LI Xu;GUAN Li(College of Physics Science and Technology,Hebei University,Baoding 071002,China;Security Department,Hebei University,Baoding 071002,China)

机构地区：[1]河北大学物理科学与技术学院,河北保定071002 [2]河北大学安全工作处,河北保定071002

出　　处：《河北大学学报（自然科学版）》2022年第3期246-250,共5页Journal of Hebei University(Natural Science Edition)

基　　金：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)。

摘　　要：在SF_(6)作为绝缘物质的设备中,SF_(6)中SO_(2)含量的精确测定,有助于预测设备中SF_(6)的纯度.利用傅里叶红外光谱仪测试SF_(6)标样中不同SO_(2)含量的吸收光谱,构建SO_(2)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SF_(6)的监测.The SF_(6)gas has been used as insulation and has been applied in some power equipments.The precise determination of SO_(2)concentration in SF_(6)is helpful to predict the purity of SF_(6).Fourier transform infrared(FTIR)spectrometer was used to measure the absorption spectra of SO_(2)of different concentrations in SF_(6)standard samples,and the relationship between SO_(2)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 SF_(6)in power switching equipment in real life.

关 键 词：SF_(6) SO_(2) 傅里叶变换红外光谱 标准工作曲线 

分 类 号：O433.4[机械工程—光学工程]