对液体表面张力系数测量的改进  

Improvement of Measuring the Liquid Surface Tension Coefficient

作　　者：刘静[1] 朱泽斌 卞琦琦 游健 曹飒 LIU Jing;ZHU Ze-bin;BIAN Qi-qi;YOU Jian;CAO Sa(Taizhou College of Nanjing Normal University,Jiangsu Taizhou 225300)

机构地区：[1]南京师范大学泰州学院,江苏泰州225300

出　　处：《大学物理实验》2018年第1期16-18,共3页Physical Experiment of College

基　　金：江苏省大学生创新创业训练计划"大学物理实验的创新性设计"(201613843013Y);江苏省高校实验室研究会研究课题(GS2017BZZ06)

摘　　要：改进现有的对液体表面张力测量的常用方法中需要事先知道接触角的问题。将毛细管法与液饼法结合,将这两种测量方法的仪器用同一种材料制造,可以消去接触角,更加方便地测出表面张力系数。改进后的方法误差最大不超过1%,操作简便,测量精度高。The problem that the contact angle need to be known in advance is solved in existing methods of measuring the liquid surface tension.Combining the capillary method with the liquid-cake method,the instruments of the two measurement methods are made of the same material,then the contact angle can be eliminated and makes it easier to measure the surface tension coefficient.The maximum error of the improved method is less than 1%.This method has the advantages of simple operation and the high measuring accuracy.

关 键 词：表面张力系数 毛细管法 液饼法 测量 

分 类 号：O4-33[理学—物理]