I/U测量对物理参数的影响  

Effects of I/U Measurement on Physics Parameters

作　　者：秦辉[1] 任海良[1] 

机构地区：[1]河北北方学院理学院,河北张家口075000

出　　处：《仪表技术》2007年第6期40-41,共2页Instrumentation Technology

基　　金：河北省科技攻关项目[06213583]

摘　　要：测量电压时,在被测试的两点间连接适当的电阻后,对两点间的电压值和该两点间电路的等效电阻影响较小;而测量电流时,在被测试的两点间连接适当的电阻后,对两点间的电压值和该两点间电路的等效电阻影响较大。该结论对实现I/U的自动识别和自动测量具有重要参考价值。When measuring voltage, there was only a little influences on voltage value and equivalent resistance value between the two mearured points if some kind of suitable resistance was linked to the circuit, while the effects on the two physics parameters were quite strong when measuring current under the same condition. These results are very helpful to the realization of automatic recognition and automatic measurement of current and voltage.

关 键 词：测量 物理参数 电压 电流 

分 类 号：TM933[电气工程—电力电子与电力传动]