摘要
基于等腰棱镜和单摄像机设计了一款小型化工业内窥镜系统,它能够同时获取同一场景的两个视图并在单帧CCD图像上显示。通过建立系统结构参数模型,分析测量范围对系统测量误差的影响,结果表明:近距离测量时,测量范围小系统误差小,随着测量范围变大测量误差也会变大,并且在沿着直线ω_(1)=ω_(2)方向,误差变化平缓。利用该系统测量高精度标定板的方格尺寸,测量误差达到微米量级,平均误差为2.06%,符合工业应用需求。文章系统结构紧凑,系统参数相对较少,对工业内窥镜的结构设计与应用具有一定的指导意义。
A miniature industrial endoscope system based on biprism and single camera is proposed, which can obtain two views of the same scene at the same time, and display on single-frame CCD image. By establishing the system structure parameter model, the influence of the measurement range on the system measurement error is analyzed. The result shows that, in the close measurement the system measurement range is small and the error is small. As the measurement range becomes larger, the error will also become larger, and the error changes gently along the straight line ω_(1)=ω_(2). Using this system to measure the grid size of the high-precision calibration board, the measurement error reaches the order of microns, and the average error is 2.06%, which meets the needs of industrial applications. The system has simple operation, compact structure and relatively few parameters. It has certain guiding significance for the structural design and application of industrial endoscope.
作者
胡梦瑶
陈文建
李武森
HU Mengyao;CHEN Wenjian;LI Wusen(School of Electronic and Optical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《光学技术》
CAS
CSCD
北大核心
2022年第4期416-420,共5页
Optical Technique
