文献类型：期刊文献

中文题名：分光计快速调节方法探讨

英文题名：A METHOD FOR RAPIDLY ADJUSTING SPECTROMETERS

作者：许飞[1];朱江转[1]

机构：[1]华东理工大学物理系,上海200237

年份：2016

卷号：26

期号：1

起止页码：55

中文期刊名：物理与工程

外文期刊名：Physics and Engineering

收录：CSTPCD

语种：中文

中文关键词：分光计;“一看二动法”;快速调节;三棱镜;逐步减半逼近法

外文关键词：spectrometer; ＂one-looking and two-moving＂ method; rapidly adjusting; triple prism; ＂both-half＂ method

摘要：在分光计调节实验中,调节望远镜光轴与分光计中心轴相互正交是最关键也是最困难的一步,针对实验中经常出现的观察不到"十"字叉丝反射像的问题,本文提出了一个新的简单有效的调整方法——调节望远镜俯仰螺丝的同时不断地转动游标盘(连同载物台),在此过程中用眼睛一直观察望远镜视场是否有绿色十字像出现(简称"一看二动法")."一看二动法"快速找到两个绿色十字像后,再利用"减半逐步逼近法"进行细调,从而大大地提高了课堂的实验教学效率.
In the experiment of spectrometer adjustment, it is very important and difficult to adjust optical axis of telescope perpendicular to central axis of spectrometer. A simple and effective method called ＂one-looking and two-moving＂ is presented in this article for the problem of no reflected cross-shaped image visible that often appears in the experiment. According to this method, we rotate the cursor disc constantly while adjusting telescope pitch screw, and meanwhile we observe whether cross-shaped image appears in the visual field of the telescope. After the green cross image is found by the ＂one-looking and two-moving＂ method, the ＂both- half＂ method is used to do fine-tuning. With the help of the above methods, the efficiency of the experimental teaching is greatly improved.