多管落球法测量重力加速度  

Measuring acceleration of gravity by multi-tube falling-ball method

作　　者：朱道云[1] 庞玮[1] 吴肖[1] 周誉昌[1] 

机构地区：[1]广东工业大学实验教学部,广东广州510006

出　　处：《实验技术与管理》2012年第4期59-61,共3页Experimental Technology and Management

基　　金：广东省实验教学研究(改革)基金项目(2010035);广东工业大学实验教学部教育教学改革项目

摘　　要：介绍了多管落球法测量重力加速度的新方法。采用外推法设计实验,实现了斯托克斯公式所要求的横向和纵向均为"无限广延"的条件。测得的重力加速度值与公认值相比相对误差为2.3%。A new method for measuring the acceleration of gravity is proposed. The extrapolation method was used to design experiments. The conditions of infinite extension in the horizontal and vertical directions re-quired by the Stokes formula are satisfied by using extrapolation method. The ideal value of the acceleration of gravity is obtained. The relative error between the calculated and the standard values is 2.3 %.

关 键 词：重力加速度 多管落球法 外推法 

分 类 号：O4-33[理学—物理]