伸长法测定杨氏模量实验装置的改进  

The improvement of the experiment of Young's modulus by pulling and stretching

作　　者：仲明礼[1] 王劲松[1] 仲伟路[1] 

机构地区：[1]潍坊学院物理与电子科学系,山东潍坊261061

出　　处：《大学物理》2006年第8期33-35,共3页College Physics

基　　金：山东省高等学校实验技术研究立项项目(126)

摘　　要：根据光杠杆的原理,借助于激光器、反射镜等器件,设计制作了一个高精度水准仪;用螺旋测微器测量水准仪平移的距离,从而得到钢丝长度的微小变化值.改进后的实验装置科学直观,准确度高,重复性好.In order to measuring the small variation of the steel-wire＇ s length, a leveling bench of high precision is made with laser, reflector, etc. The small variation of the steel-wire＇s length can be obtained by measuring the displacement of leveling bench with micrometer. The improved device is scientific and highly accurate, to be understood easily and mastered by student.

关 键 词：杨氏模量 水准仪 反射镜 氦-氖激光器 螺旋测微器 

分 类 号：O4-33[理学—物理]