有关电位差计测表头内阻的探讨  

The Discussion on Measurement Meter Interface Resistance by the Potential Difference

作　　者：谢英英[1] 罗晓琴[1] 

机构地区：[1]西南科技大学,四川绵阳62010

出　　处：《大学物理实验》2015年第2期83-85,共3页Physical Experiment of College

基　　金：西南科技大学实验与技术项目(12syjs-44)

摘　　要：介绍应用电位差计测量表头内阻的电路,在不同实验条件下采集相关实验数据,通过计算测量结果和不确定度,从不同角度分析论证了电位差计测量表头内阻的可行性和优越性。The electric circuit of the measurement meter interface resistance by the potential difference was in-troduced. It gathered the related empirical datum under the different experimental condition. Through the com-putation measurement result and the uncertainty,it had proven the feasibility and superiority of the measure-ment meter interface resistance by the potential difference from the different angle analysis.

关 键 词：电位差计 表头 电阻 精度 

分 类 号：O4-33[理学—物理]