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射线照相检验技术以其较高的灵敏度、分辨力和可靠性,获得了广泛应用.通常X射线焊缝底片的评定,由有经验的专业评片员在观片灯下人工评定,工作量大,眼睛易受强光损伤,无法精确定量分析,因此,评片能否用电脑来自动进行,就成为当前无损检测技术的重要课题之一.电脑评片的关键是高质量焊缝底片图象的获取、缺陷的自动识别、缺陷的定量测量和自动评级,本文就这四方面的问题,做了一些研究和探讨.1 焊缝底片图象的获取方法常见的电脑评片系统的输入设备一般采用面阵
Radiographic testing technology with its high sensitivity, resolution and reliability, has been widely used.Usually X-ray weld film assessment, by experienced professional reviewers in the filming of artificial assessment, heavy workload , The eyes are vulnerable to glare damage, can not be accurately quantitative analysis, therefore, the evaluation of whether the computer can be used automatically, has become one of the important topics of non-destructive testing technology.Computer evaluation of the film is the key piece of high quality weld film images , Automatic identification of defects, quantitative measurement of defects and automatic grading, this paper does some research and discussion on these four aspects.1 Methods of obtaining the images of the welding seam film Common input systems of the computer filming system are generally Using face array