光学仪器
光學儀器
광학의기
Optical Instruments
2015年
4期
299-302,313
,共5页
工件表面质量%高速图像采集%运动模糊
工件錶麵質量%高速圖像採集%運動模糊
공건표면질량%고속도상채집%운동모호
the quality of workpiece surface%high-speed image acquisition%motion blur
针对工件表面质量在线检测过程中的高速图像采集环节，提出了一种工件图像高速采集方法。分析了图像采集中定位精度、运动模糊、曝光时间和工件运行速度之间的定量关系，研究了传送机构与工件表面的振动对图像采集的影响，设计了图像采集时序。利用光电传感器实现工件的快速触发，使用高精度延时模块实现工件的准确定位，通过减小曝光时间控制运动模糊。基于高速采集方法设计了高速图像采集系统，定位精度小于0．1 mm，运动模糊小于1pixel，保证了工件的准确定位和图像的清晰度，有效保证了工件表面质量检测。
針對工件錶麵質量在線檢測過程中的高速圖像採集環節，提齣瞭一種工件圖像高速採集方法。分析瞭圖像採集中定位精度、運動模糊、曝光時間和工件運行速度之間的定量關繫，研究瞭傳送機構與工件錶麵的振動對圖像採集的影響，設計瞭圖像採集時序。利用光電傳感器實現工件的快速觸髮，使用高精度延時模塊實現工件的準確定位，通過減小曝光時間控製運動模糊。基于高速採集方法設計瞭高速圖像採集繫統，定位精度小于0．1 mm，運動模糊小于1pixel，保證瞭工件的準確定位和圖像的清晰度，有效保證瞭工件錶麵質量檢測。
침대공건표면질량재선검측과정중적고속도상채집배절，제출료일충공건도상고속채집방법。분석료도상채집중정위정도、운동모호、폭광시간화공건운행속도지간적정량관계，연구료전송궤구여공건표면적진동대도상채집적영향，설계료도상채집시서。이용광전전감기실현공건적쾌속촉발，사용고정도연시모괴실현공건적준학정위，통과감소폭광시간공제운동모호。기우고속채집방법설계료고속도상채집계통，정위정도소우0．1 mm，운동모호소우1pixel，보증료공건적준학정위화도상적청석도，유효보증료공건표면질량검측。
Aiming at the high-speed image acquisition of workpiece surface online detection,a workpiece image high-speed online acquisition method was produced. The quantitative relationship between the positioning accuracy in the high speed online image acquisition,motion blur,exposure time,and the speed of workpiece was analyzed.The effect between the vibration of the workpiece and transfer mechanism was analyzed.An image acquisition sequence was designed.Fast trigger was implemented by photoelectric sensor.The accurate positioning was implemented by using the high accurate time delay module,controlling the motion blur by reducing the exposure time.A high-speed image acquisition system was designed based on the high-speed image acquisition method.The positioning accuracy was less than 0.1 mm,and the motion blur was less than 1 pixel,ensuring the accuracy of the workpiece positioning and image quality.It is advantageous to the quality detection of workpiece surface.
