拉脱法测量液体表面张力系数实验结果分析  

Analysis of Experimental Results of Measuring Liquid Surface Tension Coefficient by Pull-off Method

作　　者：姚星星 王宙洋 YAO Xingxing;WANG Zhouyang(Department of Physics,Zhejiang University,Hangzhou 310013,China)

机构地区：[1]浙江大学物理学系,浙江杭州310013

出　　处：《大学物理实验》2022年第1期115-118,共4页Physical Experiment of College

基　　金：浙江大学物理学系2021年本科生教学改革项目。

摘　　要：对拉脱法测表面张力系数实验数据进行了详细的不确定度计算,在常温下测量结果精度较好。在变温下进行了单次测量,由于仪器控温装置精度较低以及表面张力系数随温度变化较小,每个温度点的测量值存在一定偏差,但实验结果的变化趋势基本一致。The experimental data of the pull-off method to measure the surface tension coefficient is calculated in detail,and the accuracy of the measurement results is better at room temperature.A single measurement was performed under variable temperature.Due to the low accuracy of the temperature control device of the instrument and the small change of the surface tension coefficient with temperature,the measured value of each temperature point has a certain deviation,but the change trend of the experimental results is basically the same.

关 键 词：拉脱法 力敏传感器 表面张力 不确定度 

分 类 号：O4-34[理学—物理]