静电场的测绘是大学物理实验中的重要内容，然而目前使用的静电场测绘仪存在固有误差大、人工寻找点效率低、数据处理易受影响等缺点.设计开发利用鼠标和微晶导电板测绘静电场，实验过程中使用笔式鼠标和Geogebra软件实时定位、记录静电场中等势点的坐标，用Origin软件进行数据处理并可视化静电场.此设计减小了仪器系统误差，提高了找点的效率，改善了实验的可操作性；采用软件自动拟合处理实验数据，避免了手绘等势线造成的误差，增加了实验的严谨性.

Electrostatic field mapping is an important part of university physics experiment, but the electrostatic field mapping instrument used has disadvantages such as large inherent error, low efficiency of manual point finding and vulnerable data processing. The mouse and microcrystal conductive plate were designed and developed to map the electrostatic field. During the experiment, the pen mouse and Geogebra software are used to locate and record the coordinates of the medium potential point of the electrostatic field, and origin data is used to process and visualize the electrostatic field. This design reduces the system error, improves the efficiency of finding points, and improves the operability of the experiment; uses software to process the experimental data, avoids the error caused by hand-drawn isopotential lines, and increases the rigor of the experiment.