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普http:/www.cqvip.CQm先遊检测技术曷越置Advanced Test Technology and Equipment光面位置测量仪及研制卢慧卿王宝光李亚标张元宽(天津大学精密测试技术及仪器国家重点实验室天津300072)摘 雾;对二维视觉传感器和现有标定方法进行了简单介绍,建立了标定模型。基于模型介绍了标定调整方 法研制了光面惊置测仪.即利用了光电二极管对光强感应的原理。详细介绍了光面位賈测仪 的结构.包括机械部分和电路部分,并进行了误差分析。此测仪操作简单(克服了以往方法的复杂 繁琐。经实脸验证,测量仪的重复性误差达到1.03。,达到应用系统的要求口关键词:二錐视觉传感器 标定 调整 光电二极管Development of the Light Sheet Location Measuring instrumentLU Huiqingv WANG Baoguang T LI Yabiao, ZHANG Yuankuan(Stale Key Laboratory of Precision Measuring Technology and Instrument tTianjin University, Tianjin 300072CHN)Abstract: In this paper, the two - dimensional visual sf?nsor and the exisLing caJibradon methods are presented tersely, the model of calihratioTi is also presented. Based on the model, a convenient method of adjusting 胡 designed (o calibrate, the light sheet location measuring instrumenL is developed based on the inductive elements of the two - dimenaional visual sensor to light strong. The instrumenial configuration is i ti trod need amply T including machine part and circuit part T and the error nndysis is processed. The op* eration of the instrument is easy, the method tided over the complicated disadvantage. By esperiment validating, the precision of the instrumerit is 1.03 , it has achieved the demand of lhe applied 吕ys杞m. Keywords ; Two - dimensional Visual Sensor; Cali bratinn; Alignment ; Phoioeleetric Diode1二维视觉传感器往虚拟定位技术的研究中,一个关馒部件就是二 维视觉传感器t二维视觉传感器主要由两部分组成: 线光发生系统和成像系统。线光发生系统由激光光源 与柱面镜组成成像系统由平面撓1与面阵CD像 机组成所有的装置都固建在底板上,其结构如图1所平柱理備光光据甲面輪I 库粧rai二堆視覚佚捕器的路构传感器在使用之前要进行标定,现存的标定方法 可分为两类,一类是国内常用的公式法另一类是国外 采用的矩阵法。在硏究中,我们采用了一种比较简单 的方法,即建立了线结构光模St如图2所示。K2疑黯村光模型此模型是建立在光平面垂直人射的基础上,且 (冷此込)坐标系与(冷打乙)坐标系必须满足耳 平行于F#,因此掠定前要先实现此条件2 光面位置测仪标定前的调整分两步,即调鉴塑标平行和光面垂 直。调整坐桶平行目的是为了使图像坐标系的绻轴
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