提高液体表面张力系数测量准确度的方法  

METHODS TO IMPROVE MEASUREMENT PRECISION OF SURFACE TENSION COEFFICIENT OF LIQUIDS

作　　者：秦颖[1] 王茂仁[1] 林国强[1] 余虹[1] 

机构地区：[1]大连理工大学物理与光电工程学院,辽宁大连116024

出　　处：《物理与工程》2010年第1期37-39,共3页Physics and Engineering

摘　　要：本文给出了提高液体表面张力系数测量准确度的实验方法.通过切削的办法,使得砝码盘的质量小于吊环的质量,保证了电压表的示数都在定标范围之内;通过分析得出为什么在液膜拉断瞬间读取电压值,使得测量更合理,结果更精确.This paper introduces a few methods to measure liquid surface tension coefficient with improved precision. The mass of the scale pan was made smaller than the swinging ring by cutting, which guarantees the voltmeter display always fitting the set scale. Analyses show why the voltage value read at the moment of liquid film breaking is appropriate and accurate.

关 键 词：力敏传感器 表面张力系数 液体 

分 类 号：O4-34[理学—物理] TB9[一般工业技术—计量学]