杨氏模量测量实验的仪器调节技巧与设施改进  

Instrument Adjustment Skills and Facility Improvement of Young Modulus Measurement Experiment

作　　者：朱海洋 熊泽本[1] 王周道 邓达明 ZHU Haiyang;XIONG Zeben;WANG Zhoudao;DENG Daming(School of Mathematics and Physics,Jingchu Polytechnic University,Jingmen,Hubei Province,448000 China)

机构地区：[1]荆楚理工学院数理学院,湖北荆门448000

出　　处：《科技资讯》2023年第3期26-33,共8页Science & Technology Information

基　　金：湖北省2021年大学生创业训练计划项目《拉伸法测杨氏模量实验仪器的改进》(项目编号:S202111336002)。

摘　　要：在拉伸法测量杨氏模量实验中,主要利用了光学放大原理测量微小长度,异号法减小系统误差,逐差法处理实验数据,非等精度测量的实验误差处理等。学生在具体实验操作过程中,会遇到仪器调节困难,光路调节不熟练,仪器调节和测量过程中,突发问题较多,环境光照强度对望远镜系统成像有诸多干扰等问题。主要列举出现以上各种状况所对应的实验现象,分析产生各种现象的原因,并提出调整方案,并适当提供仪器和调整方法的改进措施,有助于节省操作时间,提高实验效率,提升教学效果。In the experiment of measuring Young Modulus by Tensile method, the principle of optical amplification is mainly used to measure the tiny length, the different sign method is used to reduce the system error, the difference method is used to process the experimental data, and the experimental error processing of non equal precision measurement is used. In the process of specific experimental operation, students will encounter difficulties in instrument adjustment, unskilled adjustment of light path, many unexpected problems in the process of instrument adjustment and measurement, and many interference of ambient light intensity on the imaging of telescope system.The article mainly enumerates the experimental phenomena corresponding to the above conditions, analyzes the causes of various phenomena, puts forward adjustment plans, and appropriately provides improvement measures for instruments and adjustment methods, which will help to save operation time, improve experimental efficiency and improve teaching effect.

关 键 词：光杠杆 杨氏模量 实验仪器 调节技巧 改进措施 

分 类 号：O4-33[理学—物理]