一种基于液体棱镜的折射仪研究

The Research for Refractometer Based on Liquid Prism

文中提出了一种新型的基于液体棱镜的折射仪，其特征是用待测液体本身作为棱镜，结合并应用了线阵CCD和计算机图像处理技术。该折射仪能够自动测量和显示液体折射率及液体浓度。理论分析表明，当液体棱镜顶角为30°时，该折射仪具有很广的折射率测量范围（1．00-3．86），优于目前广泛使用的阿贝折射仪。

Here a new refractometer based on liquid prism is presented wherein the measuremented liquid is the fluid of the liquid prism. A linear array CCD and computer image processing technology are applied in this refractometer. This refractometer can automatically measured and displayed the refractive index and concentration of liquid. Theoretical analysis shows that this refractometer has a wide refractive index measurement range （ 1.00 - 3.86） when the liquid prism apex angle is 30 degree, which is superior to currently used Abbe refractometer.