基于智能手机的液体表面张力系数测量

Measuring liquid surface tension coefficient based on a smartphone

对FD-NST-B型液体表面张力测量仪加装额外的蓝牙通讯模块,并利用智能手机的蓝牙功能,使实验仪器能够通过蓝牙连接到智能手机上;同时开发出了专门的手机实验软件对该实验仪器进行控制,通过手机实验软件完成仪器数据的采集,并把采集到的所有数据在手机屏幕进行绘图,只需要观察手机屏幕上数据曲线,就能快速地得到精确的实验数据.该手机实验软件克服了传统实验模式的缺点,能够排除人为因素的影响,减小实验的偶然误差,提高测量的精确度.

A liquid surface tension measuring instrument was intellectualized by adding a Bluetooth communication module, which enabled the experimental instrument to connect to the smartphone. In the meantime, a new smartphone app was developed to control the experimental instrument. The experimental data was collected by the smartphone and was drawn on the mobile phone screen. The experimenter need only to observe the data curve on the screen of the mobile phone, and the exact data of the experiments could be obtained simply and quickly. The smartphone app could overcome the shortcomings of the traditional experimental mode, eliminate the influence of human factors, reduce the experimental error and improve the accuracy of the experiment.