摘要
液体表面张力系数是表征液体性质的一个重要物理参数,与液体的种类、成分、温度、浓度、纯度等性质有关,在物理、化学、医学、生物等领域有着重要的应用。提出了一种测量液体表面张力系数的方法,这种测量方法基于杠杆的拉脱法,测量装置采用了杠杆和拉力传感器,测量过程中只需要向下调节烧杯。这种测量法操作简单方便,测量精度高,而且可以通过调节杠杆两臂的比值改变测量的精度。
The surface tension coefficient of a liquid is an important physical parameter that characterizes the properties of the liquid.It is related to the type,composition,temperature,concentration,purity and other properties of the liquid.It is widely used in physics,chemistry,medicine,biology and other fields.In this paper,we present a method to measure the liquid surface tension.The measurement method is based on the pull off method of lever.The measurement device adopts lever and tension sensor.In the process of measurement,only the beaker needs to be adjusted downward.The measurement method is easy to operate and has high measurement accuracy.Moreover,the measurement accuracy can be changed by adjusting the ratio of the two arms of the lever.
作者
翁存程
陈悦华
何友武
WENG Cuncheng;CHEN Yuehua;HE Youwu(College of Physics and Energy,Fujian Normal University,Fuzhou 350007,China;College of Photonic and Electronic Engineering,Fujian Normal University,Fuzhou 350007,China)
出处
《实验室科学》
2021年第5期63-64,共2页
Laboratory Science
基金
福建省自然科学基金(项目编号:2019J01268)。
关键词
表面张力
拉脱法
杠杆
surface tension
pull-off method
levers
