Microammeter

Error Analysis of the Inner - resistance Measure of the Microammeter

微安表内阻测量的误差分析

This paper introduces the formula for measuring errors of the inner-resistance of the microammeter , meanwhile showing detailed analysis of its special case & equal and partial measures .

导出了微安表内阻测量的误差公式，并对它的特例&等偏法及半偏法进行了分析。

A changed temperature lead to the change of value of the thermistor , then the bridge balance broke up , which induced the change of current value to the microammeter .

温度的变化引起热敏电阻阻值的变化，从而使电桥失去平衡，引起流过微安表的电流发生变化。

In the studying of the specific property of the diode , the zero drift of the microammeter is caused by electromagnetic wave , and it has great effects on the result of the measure .

在二级管特性研究中，由于电磁波的影响引起的微安表零点飘移对测定结果有较大影响。