In order to overcome the drawback that the present experiment device cannot measure the electrostatic field directly,the measuring-angle instrument has been put forward to measure electrostatic field distribution quantitatively and directly.Firstly,getting the position of the equipotential point by one arm test probe,the polar coordinates (polar distance and polar angle) of it are obtained by measuring-angle instrument.Then getting several equipotential points of different potentials,the equipotential surface and electrostatic field lines can be drawn by the computer.Using this method can measure the electrostatic field distribution quantitatively and directly.It can greatly improve the efficiency and the accuracy of the experiment.The computer technology,which is introduced into general physics experiment,will promote the informatization of physics experiment and fusion of multidisciplinary knowledge.%针对现有仪器不能直接对静电场进行定量测量的弊端,利用角度测量装置的测量功能实现对静电场分布的直接定量测量.首先,利用单臂测试探针找到等势点后,利用角度测量装置测量出等势点的极坐标(极径和极角);找到几个不同电势的若干等势点后,利用计算机绘制静电场的等势面和电场线.这样做不仅能直接对静电场的分布进行定量测量,极大地提高实验效率和实验精度,而且将计算机技术引入普通物理实验,促进了物理实验的信息化及多学科知识的融合.
展开▼
