UJ31型电位差计中采用不同平衡指示器校准电流表

Use Different Balance Indicator Calibration Ammeter in Potentiometer UJ31

电位差计常用于精确测量电动势、电压、电流、电阻等电学量,在实验室可用来校准电表。文章对实验室频繁使用的电流表采用UJ31型电位差计配用不同的平衡指示器进行校准,对所测数据进行分析对比,得出被校表的准确度等级及采用不同平衡指示器时的测量结果。

The potentiometer is often used to accurately measuring different electrical quantities,such as elec-tromotive force,voltage,current,resistance and so on. The meter can be calibrated by the potentiometer too. In this paper,a new physical experiment has been offered. The UJ31 potentiometer is often used to current meter by balancing different indicator calibration laboratory. Through the comparative analysis on the test data, the correction table accuracy class and measuring results of different balance indicator are obtained.