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.

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.