基于机器视觉的快速玻璃折射率测量方法

发布时间：2018-04-28 05:32

本文选题：自校准 + 机器视觉　；参考：《光子学报》2017年11期

【摘要】：为实现玻璃折射率快速、高精度测量需求,提出一种基于机器视觉的玻璃折射率测量方法.推导了玻璃折射率测量数学模型,采用自准直平行光管实现传统V棱镜平行光管的功能,同时对V槽的装卡倾角进行正交性校准;双CCD结合棱镜分光实现大视场拼接,运用图像处理技术直接测量折射光线的偏折角.搭建试验样机,并与传统V棱镜折射仪和数字化V棱镜折射仪进行对比.结果表明测量精度优于±2×10-6,测量速度少于10s.测量精度和测量时间都优于前两者,对实现快速、高精度光学玻璃折射率测量具有实际意义.
[Abstract]:In order to meet the requirement of fast and high precision measurement of glass refractive index, a method of glass refractive index measurement based on machine vision is proposed. The mathematical model of glass refractive index measurement is derived, and the function of traditional V prism parallel light tube is realized by using self-collimating parallel light tube. At the same time, the obliquity angle of V slot is calibrated orthogonality, and double CCD combined with prism splicing in large field of view is realized. The deflection angle of refraction light is directly measured by image processing technique. The prototype is built and compared with traditional V prism refractometer and digital V prism refractometer. The results show that the measuring accuracy is better than 卤2 脳 10 ~ (-6) and the measuring speed is less than 10 s. The measurement accuracy and measurement time are better than the former two, which is of practical significance for fast and high precision measurement of refractive index of optical glass.
【作者单位】：长春理工大学计算机学院;长春理工大学光电工程学院;
【基金】：吉林省科技创新人才培育计划青年科研基金项目(No.20160520014JH) 吉林省科技发展计划重大专项(No.KYC-JC-YM-2012-081)资助~~
【分类号】：TQ171.112

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