Liquid surface tension coefficient measurement based on the profile fitting of axisymmetric liquid bridge
Received date: 2018-05-30
Revised date: 2018-09-19
Online published: 2019-04-26
and surface tension of two parallel plates is studied，and the method of measuring the surface tension of the
liquid bridge by fitting profile of the liquid bridge is explored. A set of experimental platform for measuring the surface
tension coefficient by photographing the enlarged image of the liquid bridge and performing edge detection is
developed. The sobel operator is used to extract the edge information on the MATLAB platform，and the liquid
bridge profile is fitted to obtain the surface tension coefficient of liquid. Relative error is controlled within 5%.
LIU Yi-fei, WANG Jin, LI Wen-hua, HUI Wang-wei, WEN Xiao-qing, ZHANG Chun-ling . Liquid surface tension coefficient measurement based on the profile fitting of axisymmetric liquid bridge[J]. College Physics, 2019 , 38(3) : 54 . DOI: 10.16854 /j.cnki.1000-0712.180330
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