线性回归法和Matlab在复摆测重力加速度实验中的应用  

Application of linear regression method and Matlab in measuring gravity acceleration of compound pendulum

作　　者：陈思佳[1] 张文霞[1] 杨启凤[1] 雍志华[1] 何原[1] 

机构地区：[1]四川大学物理科学与技术学院,四川成都610064

出　　处：《物理实验》2009年第3期44-46,共3页Physics Experimentation

摘　　要：利用复摆测量重力加速度,验证复摆周期存在极小值.通过最小二乘法分别处理复摆质量对称分布和非对称分布情况下的实验数据,并用Matlab数学软件辅助公式证明和计算过程.A compound pendulum is used to measure the gravity acceleration and verify the exist- ence of minimal value for the oscillation cycle. Least square method is used to process the experimen- tal data of two different conditions, both the symmetric distribution and asymmetric distribution in the compound pendulum＇s mass. Matlab software is helpful to prove the formulas and calculation.

关 键 词：复摆 线性回归法 极值 MATLAB 

分 类 号：O313.3[理学—一般力学与力学基础]