大学物理 ›› 2022, Vol. 41 ›› Issue (10): 29-.

• 物理实验 • 上一篇    下一篇

光杠杆法测杨氏模量实验的一种改进方法

张莉,荣振宇,王晗语,姜恒钧,韩玉晶,陈小艺   

  1. 济南大学 物理科学与技术学院,山东  济南250022
  • 收稿日期:2021-12-06 修回日期:2022-03-10 出版日期:2022-10-22 发布日期:2022-10-26
  • 通讯作者: 荣振宇,E-mail: ss_rongzy@ujn.edu.cn
  • 作者简介:张莉(1976—),女,山西朔州人,济南大学物理科学与技术学院讲师,硕士,主要从事光学基础实验教学和光学信息处理研究工作.
  • 基金资助:
    教育部产学合作协同育人项目(202102569049,202101154010)、济南大学教研项目(JZC2107,20wljy03)以及济南大学博士基金项目(XBS1611)资助

Improvement of the experiment for measuring Young,s  modulus with optical lever method 

ZHANG Li, RONG Zhen-yu, WANG Han-yu, JIANG Heng-jun, HAN Yu-jing, CHEN Xiao-yi   

  1. School of Physics and Technology, University of Jinan, Jinan, Shandong 250022, China
  • Received:2021-12-06 Revised:2022-03-10 Online:2022-10-22 Published:2022-10-26

摘要: 传统的光杠杆法测杨氏模量实验需要测量光杠杆平面镜到标尺的距离,而较大的距离会导致实验操作的不便.本论文在传统光杠杆法杨氏模量测定仪的标尺处安装一个带有读数装置的平移台,通过平移台的读数装置测量光杠杆平面镜到标尺距离的改变量,既可以提高实验测量的便捷性,也可以通过相同实验条件下的多次测量减小测量的随机误差.

关键词: 杨氏模量, 拉伸法, 光杠杆, 平移台

Abstract: In traditional optical lever method for measuring Young,s modulus, it needs to measure the distance between the optical lever plane mirror and the ruler. It is inconvenient to measure the larger distance between the optical lever plane mirror and the ruler in experimental operation. In this paper, a translation stage with reading device is installed under the ruler of the traditional optical lever instrument. It makes the experimental measurement more convenient by obtaining the change of the distance between the optical lever plane mirror and the ruler via the reading device of the translation stage. Moreover, the random error can be reduced through multiple measurements.


Key words: Young,s modulus, tensile method, optical lever, translation stage