大学物理试验论文-大学物理试验中心.DOC

大学物理实验论文 分光计的调节与三棱镜色散的测定 叶书剑 110105241 土木二班 : 分光计的调节与三棱镜色散的测定 The regulate of spectrometer and the determination of prism 论文摘要：分光计是用来测量角度的光学仪器, 用它可以测量折射率.色散本领.光波波长.光栅常数等物理量.由于其结构的复杂性，使用前的调节相对困难.但是只要了解其基本结构和测量光路,严格按调节要求和步骤仔细的调节,也不难调好.通过正确的测量方法即可准确的测量出三棱镜色散。 Thesis summary: Spectrometer is the optical instrument which uses to measure angle and using it can measure refractive index. The color spreads a skill. Light wave’s length. Light grid constant etc. the physics measure. Because it the complexity of the structure, usage front of regulate an opposite difficulty. But as long as understand its basic structure and measure light road, strict press regulate to request to regulate with step cautiously, is not difficult either to tune up. Pass the correct diagraph method can immediately accurately measure a prism color to spread. 关键词：分光计. 调节. 三棱镜色散 Key words : spectrometer. Regulate. The prism color spread 引言: 分光计(光学测角仪)是用来精确测量入射光和出射光之间偏转角度的一种仪器.用它可以测量折射率.色散本领.光波波长.光栅常数等物理量.分光计的结构复杂,装置精密,调节要求也比较高,对初学者来说会有一定困难.但是只要了解其基本结构和测量光路,严格按调节要求和步骤仔细的调节,也不难调好.分光计的结构又是其他许多光学仪器(如摄谱仪,单色仪,分光光度计等)的基础 . Preface: Spectrometer (optics measure a Cape instrument) is use to a precision to measure go into cast light to deflect a kind of instrument of angle with for cast light. Using it can measure refractive index. The color spread a skill. Light wave length . Light grid constant etc. The physics measure of structure complications, equip nicety, regulate to request also higher, there would be certain difficulty to raw recruit. But as long as understand its basic structure and measure light road, strict press regulate to request to regulate with step cautiously, is not difficult either to tune up. Spectrometer of structure is the foundation of many other optical instruments (if shoot table instrument, monochrome instrument, cent light photometer etc.). 【实验目的】 1、掌握分光计的结构，训练分光计的调整技术和技巧，学习分光计测量角度的方法 2、了解光的色散现象 3、熟悉用最小偏向角法测定物质折射率 【实验原理】 1、? 分光计的结构. 分光计是用来测量角度的光学仪器.要测量准入射光和出射光传播方向之间的角度,根据反射定