摘要
设计了简单的毛细管法测量液体黏度的实验装置,通过测量液面高度与时间的变化,拟合实验数据得到液体的黏度,省去了传统的恒压液槽的设计.通过毛细管外加恒温管的方法,可较准确地测量不同温度下液体黏度的变化.通过实验给出泊肃叶公式中液体流速与毛细管长度、内径以及两端压强差的关系.
An experimental device for determining the viscosity of liquid by the capillary method was developed. The viscosity of liquid was obtained by measuring the relationship between the height of liquid surface and time. The constant-pressure liquid tank was not required in the experimental device. The viscosity of liquid at different temperatures could he measured using the constant temperature tube around the capillary. The teaching contents of the experiment were extended by the device.
出处
《物理实验》
2012年第6期1-4,共4页
Physics Experimentation
基金
南开大学物理学基地资助项目(No.J1103208)
关键词
黏度
毛细管
泊肃叶公式
viscosity
capillary
Poiseuille formula
