大学物理 ›› 2006, Vol. 25 ›› Issue (8): 33-33.

• 著者文摘 • 上一篇    下一篇

伸长法测定杨氏模量实验装置的改进

仲明礼 王劲松 仲伟路   

  1. 潍坊学院物理与电子科学系,山东潍坊261061
  • 出版日期:2006-08-25 发布日期:2006-08-20

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

  • Online:2006-08-25 Published:2006-08-20

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.

关键词: 杨氏模量, 水准仪, 反射镜, 氦-氖激光器, 螺旋测微器

Abstract: 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.

Key words: Young' s modulus, leveling bench, reflector, He-Ne laser, spiral micrometer

中图分类号: 

  • O4-33