基于临界全反射的透明液体浓度测量

doi:10.14139/j.cnki.cn22-1228,2025.01.006

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摘要

基于全反射原理，本研究开发了一种创新的液体浓度测量方法。通过设计的容器承载待测溶液，并借助手机录制光线在液体表面发生全反射的过程，我们准确地测量了全反射的临界角。通过临界角和相关方程，进而推导出透明液体的折射率和浓度值。本实验不仅采用了直观的光学方法，还结合了手机软件的应用，从而有效降低了测量误差，减少了装置成本，操作方便。此外，这种实验设计思路的拓宽，使得光学实验更加贴近日常生活，易于推广和普及。

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	苏天泽
	谢李可
	周鑫祎
	李　想
	周梓豪
	汪　海
	金三梅

关键词: 液体浓度全反射临界角液体折射率角度测量

Abstract:

Based on the prineiple of total relleetion ,this study introduees an inventive method for measuringliquid concentration.By employing a specifically designed container to hold the test solution and utilizing amobile phone to eapture the total relleetion of light on the liquid's surface, the criical angle was preciselyobtained.Through this eritical angle and relevant equations , we derived the refractive index and concentrationvalue of the transparent liquid.This experiment not only employs intuitive optical techniques but also integratesmobile soltware, signilieanlly redueing measurement errors, equipment costs and faeilitates operation.F'urthermore ,the broadened seope of this experimental design approach brings optical experiments eloser todaily life,facilitating their widespread adoption and promotion.

Key words: liquid coneentration eritical angle of total relleetion relraetive index of liquid angle measurement

出版日期: 2025-02-25 发布日期: 2025-02-25 整期出版日期: 2025-02-25

ZTFLH:

Ｏ 435.1

引用本文:

苏天泽, 谢李可, 周鑫祎, 李　想, 周梓豪, 汪　海, 金三梅 . 基于临界全反射的透明液体浓度测量 [J]. 大学物理实验, 2025, 38(1): 30-33.
SU Tianze, XlE Like, ZHOU Xinwei, Ll Xiang, ZHOU Zihao, WANG Hai, JlN Sanmei. Measurement of Clear Liquid ConcentrationBased on Critical Total Reflection . Physical Experiment of College, 2025, 38(1): 30-33.

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https://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228,2025.01.006 或 https://dawushiyan.jlict.edu.cn/CN/Y2025/V38/I1/30

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