拉脱法测液体表面张力系数中的动态演化过程  

Analyzing the dynamical evolution in liquid surface tension coefficient measurements using pull-out method

作　　者：刘升光[1] 王艳辉[1] 牟宗信[1] 王茂仁[1] 李雪春[1] 

机构地区：[1]大连理工大学物理学院,辽宁大连116024

出　　处：《物理实验》2017年第5期12-15,20,共5页Physics Experimentation

摘　　要：利用自制液体表面张力系数测定仪,在计算机上实时监测了表面张力系数测量中电压随时间的变化曲线,并且把电压变化曲线分为6个阶段进行了详细讨论.利用此仪器精确控制了液面的升降速度和液体的温度,进一步详细研究了液面的升降速度和液体温度对表面张力系数测量结果的影响.The voltage curve was displayed in real time on computer display during the process of measuring the surface tension coefficient based on self-made instrument, and the curve was divided into six stages which were discussed in detail. Moreover, the rising and falling rate of liquid level and the temperature of liquid were precisely controlled by the self-made instrument, their effects on the measurement of surface tension coefficient were studied comprehensively.

关 键 词：表面张力 升降速度 液体温度 

分 类 号：O351.1[理学—流体力学]