摘要
本文介绍用洛埃境干涉法测量钢丝的伸长量ΔＬ，从而测定材料的杨氏模量。此法提高了测量精度，相对误差可降到３％左右。
The measurement of steel-wire elongation ΔL by Lloyd's mirror interference is presented in this paper, determining Young's modulus ot material.The method improves measuring precision and relative errors can reduce by around three percent.
出处
《大学物理实验》
1994年第1期4-7,共4页
Physical Experiment of College
关键词
洛埃镜
杨氏模量
相对伸长
干涉条纹
Lloyd's mirror
Young's modulus
relative elongation
interference fringe
