College Physics >

2017 , Vol. 36 >Issue 2: 39 - 42

DOI: https://doi.org/10.16854 /j.cnki.1000-0712.2017.02.011

Improvement on measuring coefficient of surface tension by abruption

  • LIN Ren-rong ,
  • QIU Zhu-qiang ,
  • CHEN Li-min ,
  • XIE Zhi
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  • College of Mechanical and Electronical Engineering，Fujian Agriculture and Forestry University，Fuzhou，Fujian 350002，China

Received date: 2015-12-25

  Revised date: 2016-06-21

  Online published: 2017-02-20

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Abstract

A new method for measuring coefficient of surface tension of liquid is designed by improving equipment of the experiment. New calculation formula is proposed based on force analysis of the metal ring. It corrects the used rough method which ignoring the weight of liquid. This new method has easy operation，and experiment data show that it has high accuracy and good stability. By a careful analysis of the new experimental results， some mistakes in related literatures are corrected.

Key words： pulled off method; surface tension coefficient; force analysis; sensitivity

Cite this article

LIN Ren-rong , QIU Zhu-qiang , CHEN Li-min , XIE Zhi . Improvement on measuring coefficient of surface tension by abruption[J]. College Physics, 2017 , 36(2) : 39 -42 . DOI: 10.16854 /j.cnki.1000-0712.2017.02.011

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