一种用激光杠杆测杨氏模量的方法

摘要

介绍了一种用激光束充当光杠杆测量杨氏模量的方法。该方法较传统测杨氏模量的方法操作简单、原理直截明了。同时，用掠射法简单地解决了激光杠杆测杨氏模量中ΔN的准确读数问题。本文给出了直射式和反射式两种实验光路。%A method for measuring the young modulus by laser lever is introduced ,which is easier to operate and more straightforward in principle than the traditional method .Also ,the accurate reading problem of Δn in measuring the young modulus by laser lever is solved simply by skim ming incidence .Direct light path and reflecting one are given in this paper .