金属管内光环现象的观察与研究

物理实验

金属管内光环现象的观察与研究

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1. 南京市第九中学，江苏南京 210018; 2. 南京师范大学物理科学与技术学院，江苏南京 210097 ; 3. 南京师范大学教师教育学院，江苏南京 210097

王梓彦( 1994—) ，男，江苏南京人，南京市第九中学物理教师.

收稿日期: 2020-08-14

修回日期: 2020-11-21

网络出版日期: 2021-07-09

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Observation and research on bands in metal tube

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1. Nanjing No.9 High School，Nanjing，Jiangsu 210018，China; 2. College of Physics，Nanjing Normal University，Nanjing，Jiangsu 210097，China; 3. College of Teacher Education，Nanjing Normal University，Nanjing，Jiangsu 210097，China

Received date: 2020-08-14

Revised date: 2020-11-21

Online published: 2021-07-09

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对于内壁光滑的圆柱状金属管，从开口处观察可以发现亮度不连续分布的光环.本文利用平面镜实验初步验证了产生该现象的基本原理.通过建立模型，运用 MATLAB 进行模拟，对该现象产生的基本原理进行解释.最后采用实验与模拟结合的方式对影响光环的系列因素进行探究.

关键词： 金属管; 光环; 光的反射; MATLAB 模拟

王梓彦, 吴祥, 陆建隆 . 金属管内光环现象的观察与研究[J]. 大学物理, 2021 , 40(7) : 41 . DOI: 10.16854 / j.cnki.1000-0712.200364

Looking into a cylindrical metal tube with smooth inner walls，bands with discontinuous

distribution of brightness can be found. The basic principle of this phenomenon is preliminarily

verified by mirrors. In this pa- per，the basic principle of the phenomenon is explained by

establishing the model and using MATLAB to simulate. Finally，the combination of experiment and

simulation is used to explore the series of factors which affect the phe- nomenon.

Key words： metal tube; bands; reflection of light; MATLAB simulation

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