改进型迈克尔逊干涉仪测量溶液变温折射率  

Measurement of Refractive Index of Solution with Temperature-Change Based on Improved Michelson Interferometer

作　　者：张晓冬 刘豪闯 刘海生 赵赛远 朱雪 张志峰 ZHANG Xiaodong;LIU Haochuang;LIU Haisheng;ZHAO Saiyuan;ZHU Xue;ZHANG Zhifeng(School of Electronics and Information,Zhengzhou University of Light Industry,Zhengzhou 450002,China)

机构地区：[1]郑州轻工业大学电子信息学院,河南郑州450002

出　　处：《大学物理实验》2024年第5期23-26,共4页Physical Experiment of College

基　　金：河南省重点研发与推广专项(科技攻关)项目(232102211081);河南省大学生创新创业训练计划项目(202410462069);2023年度河南省本科高校研究性教学系列项目;本科高校2023年度产教融合研究项目;2022年河南省专创融合特色示范课程的研究成果之一。

摘　　要：将单片机、摄像头、步进和减速电机等模块添加到传统的迈克尔逊干涉仪上进行改进,基于Open CV图像识别技术进行干涉条纹识别,使用改进后的迈克尔逊干涉仪测量乙醇溶液在不同温度下的折射率,并拟合出折射率与温度的关系式。实验验证,改进后的装置使用方便,测量准确。拟合后的曲线较好地反映乙醇溶液折射率随温度的变化关系,可以为科教、工业等领域提供数据参考。Adding modules such as MCU,camera,the gear motor and stepper motor to the traditional Michelson interferometer to improve it,the improved Michelson interferometer is used to measure the refractive index of ethanol solution at different temperatures.Based on Open CV image recognition technology,the number of fringes is identified and the relationship is obtained by the least squares fitting.Experimental results show that the improved device is easy to use and accurate in measurement.After data fitting,the relationship between the temperature and refractive index of ethanol solution is obtained,providing reference data for science,industry and other fields.

关 键 词：迈克尔逊干涉仪 折射率 温度 

分 类 号：O4-33[理学—物理]