| 电子电工产品基本环境试验中二氧化硫气体浓度测量不确定度的评定 |
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| 引用本文： | 刘晓丽,李俊杰.电子电工产品基本环境试验中二氧化硫气体浓度测量不确定度的评定[J].电子质量,2009(8):15-16,26. |
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| 作者姓名： | 刘晓丽 李俊杰 |
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| 作者单位： | 1. 工业和信息化部电子第五研究所计量中心,广东,广州,510610
2. 南方制碱有限公司,广东,广州,510700 |
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| 摘 要： | 文章分析了电子电工产品试验方法中二氧化硫浓度测量不确定度。充分考虑了重复测量的重现性、测爨仪器的分辨力、标准气体、二氧化硫气源的稳定性、流量测量、温度压力变化及测量等因素对二氧化硫浓度测量结果的影响，分析出二氧化硫浓度测量的合成扩展不确定度为1．4×10^-6。
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| 关 键 词： | 二氧化硫 测量不确定度 评定 自由度 |
Evaluation of Uncertainty in the Concentration of Sulfur Dioxide Gas Measured by Basic Environmental Testing of Electrical Products |
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| Liu Xiao-li,LI Jun-jie.Evaluation of Uncertainty in the Concentration of Sulfur Dioxide Gas Measured by Basic Environmental Testing of Electrical Products[J].Electronics Quality,2009(8):15-16,26. |
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| Authors: | Liu Xiao-li LI Jun-jie |
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| Affiliation: | 1.CEPREI;Guangdong Guangzhou 510610;2.Guangzhou Nanfang Soda Industry Co.;Ltd;Guangdong Guangzhou 510700 |
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| Abstract: | This paper analyzed the uncertainty in measurement of the concentration of Sulfur dioxide gas in basic environmental testing of electrical products. Full considered Such factors： measurement reproducibility, instrument resolution,standard gas, stability of the sulfur dioxide source, flow measurement, temperature and pressure Changes and the measuremant etc.. The final anatyzed expanded uncertainty is 1.4 ×10^-4. |
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| Keywords: | Sulfur Dioxide Uncertainty Evaluation Degree of freedom |
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