摘要
通过分析伏安法测电阻实验的系统误差,给出了电流表采用内、外接法的判定条件.设计了四种改进型测量电路,可消除伏安法测电阻实验的系统误差,达到提高测量精度的目的.
Through an analysis on the system error, the criterion of connecting the ammeter inside or outside in the process of using Volt-Ampere method to measure resistance is given. Besides four advanced electric circuit are designed to eliminate the experiment＇s system error and increase the measuring accuracy.
出处
《江苏教育学院学报（自然科学版）》
2009年第1期32-34,共3页
Journal of Jiangsu Institute of Education(Social Science)
关键词
伏安法
内接法
外接法
系统误差
Voltmeter-Ammeter method, the Ammeter inside, the Ammeter outside
system error
