杨氏模量测定实验的整体改进  

Overall improvement of Young's modulus measuring experiment

作　　者：赵敏[1] 强晓明[1] 章韦芳[1] 

机构地区：[1]合肥师范学院电子信息工程学院,安徽合肥230601

出　　处：《大学物理》2012年第7期37-39,共3页College Physics

基　　金：合肥师范学院教研项目(2010YJ26);合肥师范学院教改示范项目(2011JGSF02)资助

摘　　要：拉伸法测定金属丝杨氏弹性模量实验是力学的一个基础性实验.本文提出一种创新方法并研制了新的仪器,用微型激光器代替原来的尺读望远镜,大幅提高了测量精度,明显改善了实验操作性.实践证明,该仪器具备良好教学效果.The stretch method for measuring Young＇ s elasticity modulus of wire is a basic experiment of mechanics, but the present instrument is difficult to meet the teaching demand. We present an innovative method and develop the new instrument by using minilaser instead of telescope, which can greatly improve the accuracy of determination measurement and make operation become easy. It is shown that the instrument has favorable teaching effect.

关 键 词：杨氏模量测定仪 拉伸法 微型激光器 

分 类 号：O4-33[理学—物理]