角度传感器在分光计实验中的应用  

Application of angular transducer in the spectrometer experiment

作　　者：陈剑波[1] 王姝[1] 万振茂[1] 曹正东[1] 

机构地区：[1]同济大学物理系,上海200092

出　　处：《物理实验》2008年第5期5-8,共4页Physics Experimentation

摘　　要：用精密导电塑料电位器代替分光计的游标刻度盘,可以实现用电测法来测量角度.定标曲线的相关系数r=0.9999,说明精密导电塑料电位器的线性度很好,输出电压和角度变化有很好的线性关系.从实验测量结果来看,由刻度盘测量的三棱镜顶角、最小偏向角和光栅的光栅常量与用精密导电塑料电位器测出的对应值,两者的相对偏差小于1%,可满足实验要求.Using precise plastic variable resistor to replace the dial of the spectrometer, the refraction angle of light is measured, r=0. 999 9 indicates that the output voltage and the angle are linearly correlated. The difference between the results of the top angle of the triangular prism, the angle of mimium deviation and the grating constant obtained with this new method and that obtained with traditional method is less than 1% .

关 键 词：分光计 角度传感器 三棱镜 光栅 

分 类 号：O435[机械工程—光学工程]