微安表

微安表内阻测量的误差分析

Error Analysis of the Inner - resistance Measure of the Microammeter

几种微安表内阻测量方法比较

Comparison of Some methods of Surveying the Internal Resistance in Micro-ampere-meter

微安表改装欧姆表实验的研究

An experiment research on changing the microampere meter to an ohm meter

替代法测量微安表内阻的不确定度分析

The uncertainty analysis of measuring inner-resistance of micro-ampere-meter with the substitute method

在测量微安表内阻的众多方法中，替代法是最简单的方法。

Among the methods of measuring inner-resistance of micro-ampere-meter with the substitute method is the most simple one .

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。

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 .

本文介绍如何通过调整电路参数，实现仪器空白调零、满偏调整，特别介绍了用普通微安表代换原表头的方法。实验结果表明，维修后的仪器能满足实验要求。

The zero adjustment and full scale adjustment can be realized by adjusting circuit parameters , The method for replacing the original mter with a commonly used ammeter is described .

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。

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 .

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。

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 .