多仪器同测试验数据不确定度的一种评估方法

A Way of Estimation of Uncertainty of Experimental Data Gained Simultaneously by Many Measurers

对于多个测量仪器同时对同一试验进行测量取得同时刻的试验数据 ,建立了单项分类随机效应模型yij=μ +μi+εij(i=1 ,… ,n ,j=1 ,… ,m) ,εij,iid.～N(0 ,σ2 j) ;μi,iid.～N(0 ,σ20 ) ,且εij与 μi独立 ,i=1 ,… ,n,j=1 ,… ,m .利用多元统计分析方法给出了各仪器在随机试验中的A类不确定度的相等性检验H0 :σ21=… =σ2 m.对模型yij=μ +αi+βj+εij;μ ,αi,βj为固定效应 ,εij,iid .～N(0 ,σ2 )对仪器系统误差做了一致性检验 ,即H′0 :β1=… =βm,从而给出了对不确定度的评估方法 .

This paper is based on the simultaneous experimental data gained by many measures simultaneously in the same experiment, building up a single classification random effect model, y ij =μ+μ i+ε ij , i=1,...,n, j=1,...,m, ε ij , iid.～N(0, σ 2 j), μ i, iid.～N(0,σ 2 0) 且ε ij 与μ i独立,i=1,...,n, j=1,...,m , thus giving a kind A of uncertainty in equated test and way of estimation by each measurer in random trial.