磁场对物质折射特性影响研究与装置设计  

STUDY OF THE EFFECT OF MAGNETIC FIELD ON THE REFRACTIVE PROPERTIES OF SUBSTANCES AND DESIGN OF DEVICES

作　　者：冉玉晶 陈笑 诸嘉雯 彭元莉 叶雯 陈森 RAN Yujing;CHEN Xiao;ZHU Jiawen;PENG Yuanli;YE Wen;CHEN Sen(Basic Experimental Center for Natural Science,University of Science and Technology Beijing,Beijing 100083;School of Mathematics and Physics,University of Science and Technology Beijing,Beijing 100083)

机构地区：[1]北京科技大学自然科学基础实验中心,北京100083 [2]北京科技大学数理学院,北京100083

出　　处：《物理与工程》2025年第1期189-195,共7页Physics and Engineering

基　　金：中央高校基本科研业务费(FRF-TP-22-144A1);北京科技大学课程思政特色示范课程建设项目(KC2022SZ28)。

摘　　要：基于光的全反射原理,设计了一种可研究磁场与物质折射率关系的测量装置。利用该装置,通过改变磁场强度大小以及磁化时间长短精准地测量了甘油、NaCl溶液以及不同浓度的KCl溶液折射率的变化。实验结果表明:磁场强度越大,折射率越大;折射率随磁化时间增大而增大,且磁场越大,折射率到达稳定所需时间越短。该装置囊括了物理原理、装置设计、智能化数据分析等多方面技术,体现了光学实验与数据采集实验的联动,操作方便、数据实时显示、测量效率及精度较高,在教学及磁场对液体折射率测量仪器的研制上具备实际推广意义和参考价值。Based on the principle of total reflection of light,a measurement device that can study the relationship between magnetic field and refractive index of substances was designed.Using this device,the changes of refractive index of glycerol,NaCl solution and different concentrations of KCl solution were precisely measured by changing the strength of magnetic field and the the duration of magnetization.The experimental results showed that the greater the magnetic field strength,the greater the refractive index;the refractive index increased with the increase of magnetization time,and the greater the magnetic field,the shorter the time required for the refractive index to stabilize.The device encompasses various technologies including physical principles,device design,intelligent data analysis and other aspects of technology,reflecting the linkage of optical experiments and data acquisition experiments.It is userfriendly,displays data in real-time,and offers high measurement efficiency and accuracy,making it practically significant and valuable for reference in teaching and the development of instruments for measuring the refractive index of liquids under magnetic fields.

关 键 词：磁场 折射率 液体浓度 全反射 

分 类 号：O436[机械工程—光学工程]