光杠杆的激光瞄准装置

A LASER AIMING DEVICE OF THE OPTICAL LEVER

为了解决杨氏模量等实验中光杠杆的光路调节难度大的问题,对光杠杆光路进行了细致的分析,得到了光路调节所要满足的条件.根据这些条件,在光杠杆的平面镜上安装了一个主要由半导体激光器构成的激光瞄准装置.它在光路调节中起到重要的作用,只要将其激光束对准望远镜尺组上指定的瞄准点,即可满足光路调节的必要条件.该装置使得光杠杆的光路调节操作变得直观、可见、易于掌握,有效地解决了光路调节难度大问题.

In order to overcome the difficulties encountered in the light path adjustment of op- tical lever in the experiments of Young＇s modulus etc. , a detailed analysis to the light path was carried out and the conditions that the light path must meet have been derived. According to these conditions, a laser aiming device which was mainly composed of a semiconductor laser module was installed to the optical [ever mirror. It plays an important role in the light path ad- justment, as long as the laser beam aims at a certain aiming mark on the reading telescope and scale unit, the essential conditions of the light path adjustment can be met. This device makes the light path adjustment become visual, visible and easy to be mastered, therefore effectively solves the problem of the foregoing difficulties.