摘要
在测量金属丝的杨氏模量时,关键是测量金属丝的微小伸长量。给出用光学测量微小量的一种方法,即用劈尖的等厚干涉法测量钢丝的微小伸长量。
In measuring Yang’s modulus of metallic wire, to measure the mini-elongation of metallic wire is vital.This article puts forward an approach to measure the optical minimum, that is to say, to measure the mini-elongation of steel wire with the interference method of cutting the samethick points.
出处
《达县师范高等专科学校学报》
2005年第2期31-32,共2页
Journal of Daxian Teachers College
关键词
杨氏模量
劈尖
等厚干涉
光程
Yang’s modulus
point-cutting
interference with the same thickness
optical distance
