实验科学与技术2024，Vol.22Issue(2)：26-29,4.DOI:10.12179/1672-4550.20230486
落球法测量液体粘滞系数的研究与改进
Study and Improvement on Measuring Liquid Viscosity Coefficient with Falling Balls
摘要
Abstract
This article improves the measurements of liquid viscosity coefficient with falling ball and gives an intensive study.We briefly introduce the experimental steps for measuring the viscosity coefficient of liquids using video analysis.It employs the open-source software Kinovea to record and track the falling process of a ball,excluding any unqualified experimental procedures and analyzing qualified experiments frame by frame.This method enhances the experimental measurement accuracy to 240 frames per second and reduces experimental error by at least 50%.Moreover we intensively study the effects of size and edge on the experimental results.关键词
液体粘滞系数/落球法/视频分析法/实验误差Key words
liquid viscosity coefficient/falling ball method/video analysis/experimental error分类
物理学引用本文复制引用
余森源,唐锐涛,余其旺,卞小贝,王茂香..落球法测量液体粘滞系数的研究与改进[J].实验科学与技术,2024,22(2):26-29,4.基金项目
国家自然科学基金青年基金(11204132) （11204132）
国家自然科学基金理论物理专项基金(11047163/A05) （11047163/A05）
中国博士后科学基金面上项目(2014M551543) （2014M551543）
江苏省博士后科研资助计划(1302013B). （1302013B）
