水槽放置倾斜对模拟法测绘静电场实验的影响

摘要

通过对实验过程中水槽未放置水平时所描绘出的电流场的分析。观察所绘电流场各条等势线之间的距离，可发现电流场的不对称性，在实验现象的基础上进行理论分析，水槽放置倾斜时，水中电阻将不再处处相等而产生系统误差，甚至在原理上使电流场的数学函数无法与静电场匹配，进而对静电场实验产生影响。%We can find the asymmetry of electric current field by analyzing the delineation of electric current field in inclined flume and observing the distance between equipotential lines. Through the theory analysis on the basis of experimental phenomenon,we find that the Electric Resistance in water was not equal everywhere when the flume was inclined,which cased the system error and even in principle lead to the mismatching be-tween electric mathematical function and electrostatic filed. And then it influenced the experiment of electro-static field.