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激光扫描技术在钢板宽度检测中的应用
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    摘要:

    采用计算机数字图像处理技术对钢板宽度进行实时检测。在硬件结构上,采用双CCD感光器加激光线辅助光源扫描检测技术,提高系统检测精度。根据CCD成像原理及三角形相似定理,对因钢板宽度变化及钢板边缘上浮所引起的宽度变化计算模型进行了推导,提出了采用激光线遮挡板分线法来判定钢板边缘上浮所引起的测量误差,并根据误差测量结果,对钢板宽度进行了修正;同时,通过分析CCD激光线条最佳成像方法对系统进行了试验标定。结果表明,该系统的测量精度能满足实际生产需求。

    Abstract:

    The computer digital image processing technology was used for steel plate width inspection in real-time. In the hardware structure aspect, the dual CCD cameras and the optical imaging laser scanning measurement technology were employed to improve the inspection accuracy of the system. According to the CCD imaging principles and similar triangle theorems, the computer model for width changing caused by steel plate width changing and steel plate edge floating was derived. The laser sub-line method that using blocking plate in the laser projected way was put forward to determine the measurement errors caused by steel plate edge floating, and the steel plate width was corrected according to the results of measurement. At the same time, through the analysis of CCD camera laser stripe optimal imaging method, the experimental calibration was implement for the system.The result manifests that the inspection accuracy of the system can meet the practical application requirements well.

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姜占平.激光扫描技术在钢板宽度检测中的应用[J].机床与液压,2014,42(10):175-177.
.[J]. Machine Tool & Hydraulics,2014,42(10):175-177

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  • 在线发布日期: 2015-01-09
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