小电阻对测量结果的影响

Effect on Measurement Result by Small Resistance

电阻是电路的基本物理参数,电阻很小时,分析计算常忽略不计。但在许多场合下如果忽略电路中存在的小电阻,将会带来测量结果的不准确,此时必须消除小电阻影响。文中介绍了几种不同测量环境下微小电阻对测量结果的影响及消除方法。

The resistance is a basic physical parameter of the circuits, when the resistance is very small, we can ignore it. But in a great many situations, if you have no regard for the small resistance, that will bring the errors of measurement, so we have to erase the effect of the small resistance. This paper introduces the effects of the testing results as well as erasing methods of the small resistance under several environment.