摘要
从实验和理论上对拉脱法测量表面张力系数的实验进行了研究.用微力传感器代替约利弹簧,并在此基础上改进了实验仪器.研究分析了使用约利弹簧和传感器测量表面张力系数实验的实验原理,指出了它们的区别,并给出了利用传感器测量表面张力系数实验的理论计算公式.改进后的实验降低了拉脱法测量表面张力系数实验的技术难度,提高了测量表面张力系数的精确度.
The experinaent of measuring the surface tension coefficient is studied. The experimental principles are analyzed and the differences between the use of the spring and sensors are pointed out. The formula of calculating the surface tension coefficient is given by using power sensor. The precision of the experiment is improved and the operation is simplified.
出处
《大学物理》
北大核心
2008年第2期60-63,共4页
College Physics
关键词
表面张力
表面张力系数
传感器
surface tension
surface tension coefficient
power sensor
