%0 Journal Article
%T A Method for Measuring Young''s Elastic Modulus Based on CCD Image Sensor<br>一种基于CCD图像传感器的杨氏弹性模量测量方法
%A LI San-hu
%A LIU Can
%A <br>黎三华
%A 刘灿
%J 红外
%D 2006
%I 
%X The measurement of Young's Elastic Modulus is an important experiment among the physics experiments at university.The Young's Elastic Modulus is an important physical quantity for measuring the anti-deformation ability of solid materials,one of the considerations for selecting mechanical part materials and also a common parameter in engineering technologies.In tradition,the Young's Elastic Modulus is often measured by the mirror and scale method which has a relative error of 5%.In this paper, a new method for measuring Young's Elastic Modulus is presented.The method directs a laser beam to the mirror face of an optical lever and then uses a linear sold-state CCD image sensor to automatically receive the deflection direction of the laser beam instead of obtaining the data from telescope readings by the eye.Thus,the automation of the procedure is achieved and the effects due to the artificial factors in measurement is eliminated.The method has a relative error of 0.88%.It can be directly used to measure the Young's Elastic Modulus of some materials and can be used to turn the traditional physics experiment into a significant test which integrates design with research.
%K optical lever
%K Young's elastic modulus
%K CCD<br>光杠杆
%K 杨氏弹性模量
%K 光电图像传感器CCD(电荷耦合器件)
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=3723000AE493FCE650601982177048B1&aid=3AC0B3D83719DC76&yid=37904DC365DD7266&vid=DB817633AA4F79B9&iid=DF92D298D3FF1E6E&sid=6209D9E8050195F5&eid=16D8618C6164A3ED&journal_id=1672-8785&journal_name=红外&referenced_num=1&reference_num=6