用数码技术研究抛射体的运动规律  

Study of the motion law by digital technique:Projecting motion experiment

作　　者：胡昉[1] 毛宏颖[1] 应伟杰[1] 陈守川[1] 

机构地区：[1]浙江大学宁波理工学院,浙江宁波315100

出　　处：《实验技术与管理》2007年第10期102-104,共3页Experimental Technology and Management

摘　　要：利用数码相机拍摄小球运动的短片,利用Premiere,Photoshop和Excel等计算机软件合成轨迹图、处理数据和拟合运动曲线,从而探索抛射体的运动规律,并求得重力加速度值。最后分析了表差法处理结果的不确定度。The motion of a small ball is recorded by a digital camera. With Premiere and Photoshop, the short movie is synthesized into a trajectory picture. After treating a set of data by using tabular difference and curve fitting methods in Excel, the motion law of the projectile is obtained and the value of gravitational acceleration is solved. Finally the uncertainty is given.

关 键 词：数码技术 抛射体 表差 曲线拟合 

分 类 号：G642.423[文化科学—高等教育学]