迈克尔逊干涉仪测量液体浓度装置的创新研究

Innovative Research on Liquid Concentration Measurement Devices Based on Michelson Interferometer

基于迈克尔逊干涉仪实验原理,在测量光路里增加一特殊的转动装置,将盛有透明液体的比色皿的微小转动转化为螺旋测微头的进动,精准地控制和记录比色皿的起始和终止位置。通过测量螺旋测微头移动的距离以及双曲线形衍射条纹的吞吐数量,计算获得待测溶液的折射率,进而建立折射率与溶液浓度的线性关系曲线,实现了对液体浓度的精准测量,不仅拓展了迈克尔逊干涉仪的应用范围,也对迈克尔逊干涉仪实验教学内容进行了创新。

By measuring the precession of the spiral micrometer head,combined with the charaon the experimental principle of Michelson interferometer,a special rotating device is added to the measurement optical path,which converts the tiny rotation of the cuvette containing the transparent liquid into the precession of the spiral micrometer,and accurately controls and records the start and end positions of cteristic change of the hyperbolic diffraction pattern formed,the refractive index of the solution to be measured is calculated,and then the linear relationship curve between the refractive index and the solution concentration is established,which realizes the accurate measurement of the liquid concentration,which not only expands the application scope of the Michelson interferometer,but also innovates the experimental teaching content of the Michelson interferometer.