X射线工业电视检测系统灵敏度的影响因素及系统优化  

Influence Factors of X-ray Industrial TV Inspection System Sensitivity and System Optimization

作　　者：陈青山 崔二炜 陈晓雯 肖都容 高志凌 郭峰 王义民 张利辉 

机构地区：[1]渤海装备华油钢管公司,河北青县062658 [2]渤海装备华油一机厂,河北青县062658 [3]渤海装备巨龙钢管公司,河北青县062658

出　　处：《焊管》2016年第1期53-59,共7页Welded Pipe and Tube

摘　　要：简要介绍了X射线工业电视检测系统的构成及评价动态检测灵敏度的主要参数。为了提高X射线检测实时成像图像的质量,通过合理选择射线源焦点、焦距和图像放大倍数,可以改善X射线图像的不清晰度;采用外加磁场的方法矫正钢管剩磁,克服由钢管剩磁引起的X射线图像畸变;在射线源上方附近及图像增强器输入屏处放置铅块,可以明显减小由射线散射引起的X射线图像噪声;通过使用独立电源和图像增强器单独接地等手段,能够有效降低设备干扰引起的X射线图像噪声。In this article, it briefly introduced the composition of X-ray industrial TV inspection system and main parameters of dynamic detection sensitivity. In order to increase the real-time imaging quality of X-ray detection, reasonably selecting radiation source focus, focal length and image magnification times can improve image unintelligibility. It adopted applied magnetic field method to correct steel pipe residual magnetism, overcome X-ray image distortion; Placing lead over radiation source and the image intensifier input screen, can significantly reduce the noise caused by ray scattering; Through using independent power supply and the image intensifier separate grounding, can effectively reduce the X-ray image noise caused by equipment interference.

关 键 词：焊管 无损检测 X射线检测 图像增强器 图像质量 

分 类 号：TE973.6[石油与天然气工程—石油机械设备]