基于叠栅条纹测量材料的弹性模量  

Measuring elastic modulus by double grating moiré fringe

作　　者：吴一[1] 郭昶[1] 邹永丰[1] 薛铭乾[1] 袁龙亭[1] 

机构地区：[1]西南交通大学茅以升学院,四川成都611756

出　　处：《物理实验》2013年第3期46-48,共3页Physics Experimentation

基　　金：西南交通大学2011年度SRTP的支持

摘　　要：通过对材料弯曲模量实验的研究,选择用双光栅叠栅条纹测量技术,替代原实验中的光杠杆测量装置,对实验中待测钢梁弯曲形变的微小位移量进行非接触测量,同时将实验中施加力装置改为稳定、连续的施力装置,使得整个系统匹配,并形成新型的弯曲模量实验仪.Double grating moir~ fringe measuring technique was used instead of the optical lever technique to measure the tiny deformation in the experiment of the elastic modulus. Unlike the inter- mittent force-adding device in normal experiment, a continuous force-adding device, wich matched the entire system, was introduced to measure the flexural modulus. The improved experimental apparatus would certainly be wildly used.

关 键 词：弹性模量 叠栅条纹 微小形变 

分 类 号：O343[理学—固体力学] O436.1[理学—力学]