机械天平示值误差测量结果的不确定度评定

Evaluation of Uncertainty in Measurement Results of Indication Error of Mechanical Balance

分析机械天平示值误差(包括天平分度值误差、天平不等臂误差、天平示值变动性误差)测量中的不确定度来源,并对引入的每项不确定度分量进行评定,最后分别得到天平分度值误差测量、天平不等臂误差测量、天平示值变动性误差测量的扩展不确定度。

This paper analyzes the sources of uncertainty in the measurement of indication error of mechanical balance(including scale scale error,unequal arm error and variable indication error)of mechanical balance,and evaluates each uncertainty component introduced.Finally,the expanded uncertainty of scale error measurement,unequal arm error measurement and variable indication error measurement of balance is obtained.