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测量杨氏模量的一种新方法
A New Method of Measuring Yong’s Modulus
【摘要】 传统的测量杨氏模量的静态拉伸法,操作不方便,误差较大。采用劈尖的等厚干涉法测量金属丝的微小伸长量,能够简化实验过程,并提高实验精度。
【Abstract】 There exists inconvenience and big error when Yong’s Modulus is measured with traditional static tensile method.In this paper,the small elongates is measured by equal thickness interference in wedge-shaped film,and the Yong’s Modulus is calculated.The whole experimental course is simplified.The precision is validated,which shows that the precision is improved by using the method of interference.
【关键词】 杨氏模量;
劈尖;
等厚干涉;
测量精度;
【Key words】 Yong’s modulus; wedge-shaped film; equal thickness interference; measuring precision;
【Key words】 Yong’s modulus; wedge-shaped film; equal thickness interference; measuring precision;
- 【文献出处】 淮阴工学院学报 ,Journal of Huaiyin Institute of Technology , 编辑部邮箱 ,2008年05期
- 【分类号】O4-33
- 【被引频次】5
- 【下载频次】397