For ammeter A1, milliamperemeter or digital ammeter shall be used while for ammeter A2 amperemeter upto 50 A or digital ammeter shall be used.
电流表A1应选用量程为毫安级电流表或选用数字电流表； 电流表A2应选用量程为50A以下的安培级电流表或选用数字电流表。
The diffusion current is measured using transistor and digital ammeter instead of operational amplifiers, and the Boltzmann constant is obtained accurately.
在不使用运算放大器的情况下，直接利用晶体三极管与数字式电流表测出扩散电流，可以得到较为准确的玻尔兹曼常量。
The system can realize not only reading and setting digital ammeter, but also centralizing management of mechanical ammeter in which has acquisition module.
该系统不仅能抄收和设置电子式电度表，还能对普通电表加装采集模块后进行集中管理。
The invention discloses a digital observation mirror for an ammeter.
本发明公开了一种电表数字观察镜。
The invention discloses a digital observation mirror for an ammeter.
本发明公开了一种电表数字观察镜。
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