利用力传感器测量液体表面张力系数

Measuring the Liquid Surface Tension Coefficient Using Force Sensor

为了解决传统实验中肉眼观察数字电压表的数值存在较大误差且计算过程繁琐的问题,将力敏传感器引入实验的同时,结合单片机和上位机系统,在实验过程时间段内连续采集数据点,绘制出外力变化的曲线图像,更为精确地确定环形液膜拉断瞬间的脱离力,减小误差,从而使得实验结果更加精确.

In order to solve the problem of large error in the value of digital voltmeter observed by the naked eye and cumbersome calculation process in the traditional experiment,while introducing the force sensor into the experiment,combined with the single chip microcomputer and host computer system,continuously collect data points in the time period of the experimental process,draw the curve image of the change of external force,more accurately determine the separation force at the moment of breaking the annular liquid film,and reduce the error,this makes the experimental results more accurate.