实验科学与技术2016，Vol.14Issue(5)：26-27,51,3.DOI:10.3969/j.issn.1672-4550.2016.05.007
周期个数设定对三线摆测量重力加速度的影响
Influence of the Number of Cycles to the Gravity Acceleration Measured by Three Line Pendulum
俞莹1
作者信息
- 1. 东北林业大学 物理系，黑龙江 哈尔滨 150040
- 折叠
摘要
Abstract
The three wire pendulum method was used to deduce the rotary inertia of the three wire pendulum.Furthermore,the principle was used to deduce the expression of acceleration of gravity.In order to improve the accuracy of gravity acceleration in Harbin area by three wire pendulum method,the rotation period number is 5,10,20,40,30 and 50,respectively.The impact of the air re-sistance and friction between suspension lines to acceleration of gravity was analyzed by choosing different the number of rotation peri-od.According to the compare between the Haerbin gravity acceleration of experiment and Haerbin gravity acceleration of reasonable, the optimal numbers of rotation period is 40.关键词
三线摆/转动周期/转动惯量/重力加速度Key words
three-line pendulum/rotation period/moment of inertia/gravity acceleration分类
数理科学引用本文复制引用
俞莹..周期个数设定对三线摆测量重力加速度的影响[J].实验科学与技术,2016,14(5):26-27,51,3.
