摘要
利用刀口仪和球面反射镜设计了空气成像演示仪.将热源置于球面反射镜和刀口仪点光源之间,改变空气的温度分布,使球面反射镜的反射光线发生偏折,在刀口后方即可以直观地观察到热空气流动的状态,即实现空气成像的演示实验.该演示实验装置简单,使用CCD采集图像,现象明显且易于观察,利于学生理解光学检测技术中刀口仪的原理.
An air imaging demonstration experiment was designed using knife-edge tester and spherical mirror.The heat source was placed between the spherical mirror and the point light source on the knife-edge tester,by which the air temperature distribution and the direction of reflected light were changed.The flow of hot air could be visually observed behind the knife-edge.This demonstration experiment device was simple,and the phenomenon was obvious and easy to observe with CCD to collect images,which helped students understand the principle of knife-edge tester.
出处
《物理实验》
2018年第2期27-30,共4页
Physics Experimentation
基金
江苏省高等教育教改研究立项课题资助(No.2017JSJG474)
高等学校物理实验课程教学研究项目资助(No.01-201601-36)
苏州科技大学教学改革与研究项目资助(No.2017JGMZ-06)
苏州科技大学天平学院教育教学改革研究项目资助(No.2017TJGB-09)
苏州科技大学天平学院教育教学改革研究重点项目资助(No.2015TJGA-04)
江苏省第十二批"六大人才高峰"项目(No.DZXX-026)
关键词
空气成像
刀口仪
几何光学
球面反射镜
air imaging
knife-edge tester
geometrical optics
spherical mirror
