二氧化硫的测量不确定度评定

An Evaluation of Uncertainty in Determination of Sulphur Dioxide

一切测量结果,都不可避免地具有不确定度。计量界提出的不确定度的概念,被定义为表征合理的赋予被测量之值的分散性,以测量结果相联系的参数,其主要意义在于能正确表达测量结果的正确性。通过对SO_2浓度的测定过程分析,找出影响结果的各个分量,进行测量不确定度的评定。

Any measrement will inevitably result in some uncertainties. The uncertainty was defined as dispersion vested to the observations and a parameter related to the measurements. Its major significance is to properly exprerly express a validity of the measurement. Based on the analysis of sulphur dioxide determination prcess, various factors influencing the measurement were found out, and an evaluation of the uncertainty in the determination was conducted.