大学物理实验
大學物理實驗
대학물리실험
PHYSICAL EXPERIMENT OF COLLEGE
2014年
5期
23-26
,共4页
张凯%姚宇峰%刘紫%张智鹏
張凱%姚宇峰%劉紫%張智鵬
장개%요우봉%류자%장지붕
复摆%编码器%重力加速度%转动惯量%平行轴定理%Matlab
複襬%編碼器%重力加速度%轉動慣量%平行軸定理%Matlab
복파%편마기%중력가속도%전동관량%평행축정리%Matlab
compound pendulum%encoder%gravity acceleration%rotary inertia%physical parallel-axis theorem%matlab
针对复摆实验,设计了一种基于编码器的复摆实验装置。该装置将摆锤和多孔摆结合起来,可以采用多种方式对重力加速度、转动惯量进行求解,并验证了刚体的平行轴定理。在实验过程中,采用Matlab进行最小二乘法线性拟合,创新性地完成了对重力加速度的求解和平行轴定理的验证。实验结果表明,相比于传统的复摆,该装置更为简便,精度更高。
針對複襬實驗,設計瞭一種基于編碼器的複襬實驗裝置。該裝置將襬錘和多孔襬結閤起來,可以採用多種方式對重力加速度、轉動慣量進行求解,併驗證瞭剛體的平行軸定理。在實驗過程中,採用Matlab進行最小二乘法線性擬閤,創新性地完成瞭對重力加速度的求解和平行軸定理的驗證。實驗結果錶明,相比于傳統的複襬,該裝置更為簡便,精度更高。
침대복파실험,설계료일충기우편마기적복파실험장치。해장치장파추화다공파결합기래,가이채용다충방식대중력가속도、전동관량진행구해,병험증료강체적평행축정리。재실험과정중,채용Matlab진행최소이승법선성의합,창신성지완성료대중력가속도적구해화평행축정리적험증。실험결과표명,상비우전통적복파,해장치경위간편,정도경고。
Aimed at the experiment of compound pendulum,a experiment equipment of compound pendulum based on encoder is designed. The equipment combines pendulum bob with multihole pendulum. The gravity acceleration and inertia moment can be solved in various ways. The parallel-axis theorem of rigid body can be verified with this physical pendulum. In the process of experiment, linear least-squares fitting with Matlab is used to solve the gravity acceleration and verifies the parallel-axis theorem creatively. The results confirm that it is more simple and more accurate than the traditional compound pendulum.