利用牛顿环实验测定玻璃的弹性模量

摘要

弹性模量是衡量物体抵抗形变能力的重要物理量,本文在对牛顿环这一大学物理经典实验研究的基础之上,对牛顿环仪进行了改装,从理论上分析光学平板玻璃与平凸透镜接触端暗斑大小与外力的关系。测定弹性模量,同时利用MTALAB进行数据处理。%Elastic modulus is an important physical quantity which can measure the ability to resist deformation.In the basis of studying of Newton ring＇s experiment,we change the Newton＇s ring instrument,in this paper we analysis the relationship between the size of dark spots and external force,in the meantime using MTALAB for data processing.