比较法正压漏孔校准结果的不确定度评定

摘要

采用比较法校准正压漏孔具有操作简便、校准效率高的特点。为评定比较法校准正压漏孔校准结果的不确定度，在比较法校准正压漏孔的实验基础上，建立了比较法正压漏孔校准结果不确定度评定的数学模型，分析不确定度各影响分量及其灵敏度系数，计算出比较法校准正压漏孔的标准不确定度及扩展不确定度。%Pressure reference leak calibration with compare method is simple and efficiency. To evaluate uncertainty of calibration specification for pressure reference leak with compare method,we establish math model,analyze the influ-ence and the sensitivity of uncertainty,evaluate the uncertainty caused by the calibration apparatus and repeat measure, comparatively extendable uncertainty of calibration specification for pressure reference leak could be gained. At last, through experimentation,this paper gives a demonstration of calibration specification for pressure reference leak.