摘要
给出了ＣＣＤ（Ｃｈａｒｇｅ－Ｃｏｕｐｌｅｄ Ｄｅｖｉｃｅ，简称ＣＣＤ）视觉检测系统的总体设计方案，提出了一种新结构的背景照明、平行光投影成像、ＣＣＤ光电接受、高速转镜光学补偿的光学系统．从测量方法上消除了被测件晃动或振动以及高速运动对测量的影响，成功地补偿了高速运动造成的影像模糊，获取了螺纹钢的清晰轮廓像．同时，对影响精度的因素进行了讨论和分析．
The scheme of the measurement system of CCD is presented in this paper.A new optical is proposed,which uses background illumination,parallel light to project on the workpiece,high speed rotating mirror as an optical compensation,and a CCD camera as a photo electronic receiver.Thus the bad effect of the sway and the vibration of the workpiece on the measurement is eliminated.Mean while the indistinction of the image is compensated successfully.The clear contour of the workpiece is grabbed. The factors that have impact on the accuracy of the system are also discussed.
关键词
高速转镜
CCD摄像机
视觉检测系统
摄像机
on line inspection
high speed rotating mirror
optical compensation
CCD camera.
