泡膜半径法测量液体表面张力  

The Surface Tension of Liquid was Measured by Bubble Radius Method

作　　者：高培严 孙家军[1] 徐崇[1] GAO Peiyan;SUN Jiajun;XU Chong(College of Science,University of Science and Technology Liaoning,Liaoninig Anshan 114051)

机构地区：[1]辽宁科技大学理学院,辽宁鞍山114051

出　　处：《大学物理实验》2019年第2期28-30,共3页Physical Experiment of College

基　　金：辽宁科技大学创新创业项(201810146358)

摘　　要：根据泡膜半径与液体表面张力系数所满足的函数关系进而测量液体表面张力系数,实验中利用U型管测量泡膜相对内压并通过电脑对泡膜的图像采集来测量泡膜半径,实验设计新颖独特,实验结果准确,且有利于提高学生的物理思维及对电子设备的使用能力。According to the functional relationship between the bubble radius and the liquid surface tension coefficient,the liquid surface tension coefficient is measured.In the experiment,the relative inner pressure of the bubble is measured by U-tube and the bubble radius is measured by image acquisition of the bubble by computer.The experimental design is novel and unique,the experimental results are accurate,and it is conducive to improving students'physical thinking and the ability to use electronic equipment.

关 键 词：表面张力 气泡 U型管 图像分析 

分 类 号：O4-34[理学—物理]