摘要
重力加速度的准确测量对于物理学、大地测量学、计量学来说,都有着十分重要的意义,而目前测量重力加速度的方法有许多种,在此就一些测量重力加速度的常用方法以及自行设计的方法进行探讨.研究结果表明:3种方法中操作比较简单的是自由落体法;但是从相对误差看,自由落体法的相对误差Eg=2.05%,单摆法的相对误差Eg=0.2515%,而平抛运动法的相对误差Eg=2.29%,即单摆法的相对误差最小.
The accurate measurement of the gravitational acceleration is very important for physics, the geod- esy and the metrology. Recently there are many methods to measure the gravitational acceleration. Some methods were investigated and the results showed that the simple method of operation is free fall whose rela- tive error is Eg =2. 05%, the simple pendulum of which the relative error is Eg =0. 2515% and flat thro- wing motion whose relative error is Eg = 2. 29%. The relative error of simple pendulum is comparatively the minimal.
出处
《曲靖师范学院学报》
2015年第3期4-6,42,共4页
Journal of Qujing Normal University
基金
曲靖师范学院教务处综合性设计性实验项目"PASCO转动学实验改进"
关键词
重力加速度
方法
对比
gravitational acceleration
method
comparison
