基于CCD的激光熔覆熔池宽度的在线检测研究

摘要

为了研究激光熔覆熔池尺寸,采用CCD摄像机和VISUAL C<'++>平台自主开发的图像处理软件,建立了一套针对激光熔覆熔池宽度的在线检测系统,提取了熔池边缘和几何特征参量,通过标定试验测定系统的校正系数,在线获取了熔覆层的宽度.结果表明,该系统能比较准确地实现熔池宽度的在线检测,为实时检测激光熔覆熔池表面质量提供了一个有效的工具.%In order to study the size of melt pool in laser cladding, a system for monitoring the melt pool was constructed with a CCD camera and special image-processing software developed on VISUAL C ++. The edge and geometric parameters of the melt pool were obtained in real-time. The width of the clad layer was obtained in time after calibration correction coefficients of the experimental detection system. Experiment results indicate that the width of melt pool can be detected accurately, and the presented system is useful for online detection of the clad quality.