The sensitivity of the self-organized bridge using resistance box as arm resistance and the uncertainty of the measuring result are analysed. The selecting principles are given.
本文分析了用电阻箱作桥臂电阻自组电桥的灵敏度及测量结果不确定度，给出桥臂电阻的选择原则。
2
Procedure, principles and something to be attended for the evaluation of the uncertainty of measurement in environmental monitoring laboratories were introduced.
提出环境监测实验室测量不确定度的评估程序、评估原则、注意事项。
3
The basic principles and practical applications of measurement uncertainty are introduced by evaluating and analyzing measurement of metal Rockwell hardness c.