可逆摆测重力加速度实验研究

Experimental study of measuring the acceleration of gravity with reversible pendulum

可逆摆测重力加速度是较精确的一种常用的方法,本文从可逆摆的原理出发,推导出了可逆摆方程,并结合本实验室所用摆的参数确定了B锤的取值范围,并由实验验证了范围的准确性.在测量中,找到了的最佳测量点.最终得到当地的重力加速度为9.794±0.

The method that reversible pendulum examines acceleration of gravity relatively is commonly used. In this paper ,we base on reversible pendulum principle and derive the reversible pendulum equation. Considering the parameter of the laboratory, we confirm the range of moving hammer B, and prove experimentally the accuracy of the range. We also summarize the method of measuring ,and find the best measuring position. At last, we get the local acceleration of gravity as 9.794±0.005 m/s^2.