【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。更多还原

【Abstract】 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.更多还原