大学物理 ›› 2017, Vol. 36 ›› Issue (4): 46-49.doi: 10.16854 /j.cnki.1000-0712.2017.04.011

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基于智能手机的迈克耳孙干涉自动计数系统

崔大钧1,宋宇航1,熊畅2,唐芳2,陈彦2,李朝荣2   

  1. 1. 北京航空航天大学电子信息工程学院,北京100191;   2. 北京航空航天大学物理科学与核能工程学院,北京100191
  • 收稿日期:2016-07-26 修回日期:2016-10-21 出版日期:2017-04-20 发布日期:2017-04-20
  • 作者简介:崔大钧( 1995—) ,男,山西运城人,北京航空航天大学电子信息工程学院2014 级在读本科生.
  • 基金资助:
    北京航空航天大学重大教改基金项目资助

The automatic counting system of Michelson interference based on smartphone

CUI Da-jun1,SONG Yu-hang1,XIONG Chang2,TANG Fang2,CHEN Yan2,LI Chao-rong2   

  1. 1.School of Electronical Information Engineering,Beihang University,Beijing 100191,China;   2.School of Physics and Nuclear Energy Engineering,Beihang University,Beijing100191,China
  • Received:2016-07-26 Revised:2016-10-21 Online:2017-04-20 Published:2017-04-20
  • Supported by:
     

摘要: 在迈克耳孙干涉测波长实验中,计数干涉圆环的吞吐数量历来是实验者头疼之事,本文开发了一种基于智能手机的自动计数软件系统.该软件通过智能手机自带摄像头采集干涉环图像,经滤波分析自动计算干涉圆环吞吐数.该系统操作简单,计数精度可以达到0.5 环,大大提高了测量准确度.随着智能手机的普及应用,该系统具有广阔的应用前景.

关键词: 迈克耳孙干涉仪, 智能手机, 自动计数系统

Abstract: Counting the number of interference fringes has always been a headache in the Michelson interferometer experiment for measuring the wavelength of He-Ne laser.In this paper,we introduce the automatic counting software system based on smartphone.The software comes with a smartphone camera to capture the interference fringe image.We use the Fourier transform filter analysis to calculate the number of fringe throughout automatically.The system is simple to   operate and has a counting accuracy of up to 0.5 fringe,which greatly improves the measurement accuracy.With the popularity of smartphone applications,the system has broad application prospects.

Key words: Michelson interferometer, smartphone, automatic counting system

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