【摘要】 采用直观的因果图,对矿石中总铁含量测量不确定度的来源及其对测量不确定度的影响进行分析。建立有效的数学模型,利用相对标准不确定度分步计算及整体合成进行测定结果不确定度的评定。更多还原

【Abstract】 Adopting the direct chart of the cause and the effect, analyzed all kinds of uncertainty sources in the process of the determination of total iron content in the ores and their influences on the uncertainty. Established the effective mathematical model. The uncertainty estimation of the determination result was carried out by the caculating of the relative standard uncertainty step by step and the compounding wholly.更多还原