Measuring tiny mass by using amperemeter

用电流表测微小质量

Amperemeter inner resistance measure experiment method in teaching material analyses the system error and experiment method can be ameliorated.

对教材中电流表内阻测量实验方法分析其系统误差，从而对实验方法进行改进。

To study the influence of Qi blood change on the functions of the acupoints, self made acupoint volt amperemeter is employed to dynamically measure the volt ampere curve in 25 university students after blood donation.

为研究人体气血变化对穴位功能、特性的影响，以自制智能型经穴伏安特性检测仪，动态测定25名献血后大学生穴位伏安曲线。

And this paper introduces the flexible shunt structure of amperemeter in order to let students use amperemeters correctly.

为了让学生正确使用电流计，介绍了电流计的分流器结构。

Symbols for balancing machines and associated instrumentation Study of feasibility to calibrate pincer Amperemeter with Ampere-turn equilibrium principle

GB/T9238-1998平衡机及其仪器仪表用图形符号采用安匝平衡原理校验钳形表可行性探讨

The error analysis in the measurment of amperemeter resistance with the substitute method

半偏法测表头内阻的误差分析

And it gives that the additional instruction of the reason about the outer resistance of amperemeter equals the critical resistance when you adjust the amperemeter to zero.

并补充说明了为什么对电流计机械调零时应使外电阻等于电流计的临界电阻。