大学物理 ›› 2019, Vol. 38 ›› Issue (10): 47-.doi: 10.16854 /j.cnki.1000-0712.1900043

• 物理实验 • 上一篇    下一篇

基于颜色仿真与匹配的肥皂膜厚度测量

李成金,钱铮,丁云,黄振宇,陆啸宇,徐富良   

  1. 1. 苏州大学文正学院,江苏苏州215104; 2. 苏州大学物理科学与技术学院,江苏苏州215006
  • 收稿日期:2019-02-01 修回日期:2019-04-29 出版日期:2019-10-20 发布日期:2019-11-14
  • 作者简介:李成金( 1960—) ,男,辽宁锦州人,苏州大学物理科学与技术学院教授,主要从事大学物理教育工作.
  • 基金资助:
    苏州市“普通物理及实验”优秀教学团队建设及苏州大学文正学院精品课等项目资助

Measuring soap bubble thickness with color simulationand Match

LI Cheng-jin,QIAN Zheng,DING Yun,HUANG Zhen-yu,LU Xiao-yu,XU Fu-liang   

  1. 1. Wenzheng College,Soochow University,Suzhou,Jiangsu 215104,China; 2. School of Physics and Technology,Soochow University,Suzhou,Jiangsu 215006,China
  • Received:2019-02-01 Revised:2019-04-29 Online:2019-10-20 Published:2019-11-14

摘要: 肥皂膜在日常生活和物理学中经常会遇到.在薄膜干涉中也常会作为例子使用.人们总是关心,各种不同肥皂膜的厚度及其变化情况如何.本文以宽光谱LED 为光源,观察并用相机拍摄了肥皂膜上的干涉图样,用颜色仿真和匹配法测量了肥皂膜的厚度.并且采用已知波长的单色光重复测量了肥皂膜厚度,同时用等厚干涉公式验证了测量结果.结果显示,与宽光谱光源相比,用单色光源做此类实验更具优势.

关键词: 肥皂泡, 薄膜干涉, 颜色仿真, 配色, 宽光谱LED

Abstract: The soap bubble often appears in daily life and physics. Particularly,it is mentioned when to introduce thin film interference as an example. Peoplewonderwhatisthickness of various soap bubbles. Inthispaper, theinterferencepatternsonthesurfaceof soap bubblesareobserved and photographed. With simulation of the light spectrums of LED's ray and the spectral sensitivity functions of the camera,the thickness of soap bubble is measured with color-matching. Finally,it is pointed that monochromatic light for this experiment is more advantage to white light.

Key words: soap bubble, thin film interference, color simulation, color-matching, white LED