江汉大学学报（自然科学版）2023，Vol.51Issue(6)：18-24,7.DOI:10.16389/j.cnki.cn42-1737/n.2023.06.003
基于环形干涉光路测量透明液体折射率的研究
Research on Refractive Index Measurement of Transparent Liquids Using Optical Loop Interference
熊学辉 1林荷玉 1俞纪翔 1吴林法 1张立辉1
作者信息
- 1. 江汉大学 光电材料与技术学院,湖北 武汉 430056
- 折叠
摘要
Abstract
The refractive index is an important property of liquid,which is often detected by the optical interference method for transparent liquid.Most methods need to measure the movement of interference fringes,but it is difficult to judge whether it is exactly the integer order fringes movement,which will bring some errors.To solve this problem,this paper proposed a ring interference light path,which realized the interference spot with zero optical path difference and zero angle difference between clockwise and counterclockwise light paths,instead of the conventional interference fringes.The detection principle suitable for this optical path was also designed.After rotating the liquid box at a certain angle,the liquid refractive index can be calculated by measuring the movement of the interference spot.The experimental results showed that the relative error between the measured refractive index of deionized water and the standard value was small.It demonstrates that the design of the experimental optical path and principle are reasonable and reliable,which provides a new method for measuring the refractive index of the liquid.关键词
环形干涉光路/干涉光斑/折射率Key words
optical loop interference/interfering spots/refractive index分类
数理科学引用本文复制引用
熊学辉,林荷玉,俞纪翔,吴林法,张立辉..基于环形干涉光路测量透明液体折射率的研究[J].江汉大学学报（自然科学版）,2023,51(6):18-24,7.
