大学物理 ›› 2026, Vol. 45 ›› Issue (2): 104-.doi: 10.16854/j.cnki.1000-0712.250254

• 2025高等学校物理教学创新与发展研讨会 • 上一篇    下一篇

基于液芯柱透镜的创新型实验仪

孟伟东,耿柏琳1,2,普小云   

  1. 1. 云南大学 物理与天文学院,云南 昆明650050;2. 云南省碳中和绿色低碳技术重点实验室,云南 昆明650050 
  • 收稿日期:2025-05-10 修回日期:2025-06-10 出版日期:2026-05-15 发布日期:2026-05-21
  • 作者简介:孟伟东(1989—),男,河南郑州人,云南大学物理与天文学院副教授,博士,主要从事大学物理实验教学和光学检测光学测量研究
  • 基金资助:
    国家自然科学基金(12164053);云南省科技计划项目(202401AT070466,202202AG070002,202503AP140018);云南省“兴滇英才支持计划”类青年人才专项)资助

Innovative experimental instrument based on liquid-core cylindrical lens

MENG Weidong1,2, GENG Bolin1,2, PU Xiaoyun1,2   

  1. 1. School of Physics and Astronomy, Yunnan University, Kunming, Yunnan 650500, China; 
    2. Yunnan Beifang Photo-Electric Technology Co.,Ltd Kunming, Yunnan 650223, China
  • Received:2025-05-10 Revised:2025-06-10 Online:2026-05-15 Published:2026-05-21

摘要: 本文介绍了一种基于自主研发的液芯柱透镜设计制作的创新型实验仪器,旨在通过在光学测量领域的应用,提升高校实验教学水平、科学研究能力并培养学生创新思维.研究核心围绕自主设计加工的液芯柱透镜展开,结合等折射率薄层移动、瞬态图像分析、Boltzmann-Matano等方法,实现了液体折射率与液相扩散系数的快速、高精度测量.实验结果表明,该仪器折射率测量精度≥0.0002 RIU,液相扩散系数测量偏差≤0.02×10-5 cm2/s,且具备抗干扰性强、测量时间短及过程可视化等优势.目前已开发20个配套实验内容,支持学生从光路调整、球差消除到扩散、溶解等过程的动态观测与数值模拟,为科研与教学提供高效、可靠的工具,具有广泛的应用前景.


关键词: 液相扩散系数测量仪, 液芯柱透镜, 液体折射率, 液相扩散系数

Abstract: This paper presents an innovative experimental instrument using a liquid-core cylindrical lens. The instrument aims to enhance university-level experimental teaching, scientific research, and student innovation in optical measurement applications. Based on a self-designed liquid-core cylindrical lens, the instrument combines methods like the equal-refractive-index thin-layer movement, Boltzmann-Matano, and transient image analysis to achieve rapid, high-precision measurement of liquid refractive indices and liquid-phase diffusion coefficients. Experimental results show that the instrument offers a refractive index measurement accuracy of over 0.0002 RIU and a liquid-phase diffusion coefficient measurement deviation of under 0.02×10-5 cm2/s. It also provides strong anti-interference, short measurement time, and a visual process. Fifteen supporting experimental courses have been developed. These enable students to dynamically observe and numerically simulate processes from optical path adjustment and eliminating spherical aberration to diffusion and dissolution. The instrument is a highly efficient and reliable tool for scientific research and teaching and has broad application prospects.


Key words:  liquid diffusion coefficient measuring instrument, liquid-core cylindrical lens, liquid refractive index, liquid-phase diffusion coefficient