电位差计校准微安表的综合性实验设计

电表经过改装或长期使用后,必须进行校准。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。文章对实验室经常、频繁使用的电表进行校准,要求选取实验器材、设计实验电路、进行实验测量,将得到的数据进行分析,得出被校表的准确度等级。

Comprehensive Experimental Design of Potentiometer Calibration Micro-ampere-meter

If the meter has been converted or used for a long time,it must be calibrated. The potentiometer is often used to accurately measure different electrical quantities,such as electromotive 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 students are required to select test equipment,design circuit,analysis the data and draw the forms of the meters grade indepently.