基于旋转液体特性实验的激光双次反射法测重力加速度

旋转液体特性实验是大学物理实验中典型的综合实验项目,本文利用激光束在旋转液体表面的双次反射时的特性,确定了测量重力加速度的新方法。通过对比实验发现,本设计减少了原有单次激光反射测量重力加速度时的物理量数目,并有效提高了测量结果的精确度。

Measuring the Acceleration of Gravity with Double Reflected Laser Beam Method Based on Rotating Liquid

Rotating liquid research is one of typical comprehensive experimental project in collage physics ex-periments.In this paper,we propose one new method to measure the acceleration of gravity by using one double reflected laser beam.This design reduces the number of necessary physical quantities parameters and improves the accuracy of the experiment too.The reason is that as the liquid rotating at a high speed,the liquid parabola is more stable than a low rotating speed one.