摘要
电流场模拟静电场实验是《大学物理实验》中的一个重要内容。一般教材采取利用直流电压表测量探针和外电极之间电压的方法来描绘长同轴圆柱形电缆的等势线分布。本论文将采用惠斯登电桥法对其等势线分布进行测量,并且与电压表和数字万用表测量的结果及理论值进行比较。
The experiment of electric current field analogizing electrostatic field is an important content in university physics experiment.Using the dc voltmeter to measure the voltage between the probe and the outer electrode for the long coaxial cylindrical cable is the common method.The Wheatstone bridge method is used to measure the isopotential distribution,and the results are compared with the values of dc voltmeter,digital multimeter and theoretical calculation.
作者
刘力铭
肖雪
刘睿
吴雅鑫
王丽
LIU Liming;XIAO Xue;LIU Rui;WU Yaxin;WANG Li(Department of Physics,Jilin Normal University,Siping 136000,China)
出处
《大学物理实验》
2019年第5期29-31,共3页
Physical Experiment of College
关键词
模拟法
电流场
惠斯登电桥
等势线
analogy method
electric current field
Wheatstone bridge
equipotential line
