AN AUTOMATIC DEFECT RECOGNITION SYSTEM FOR REAL TIME RADIOSCOPY OF STRAIGHT-TUBE BUTT WELD JOINTS

摘要

The invention relates to an automatic defect recognition system for real time radioscopy (RTR) of straight tube butt welds, comprising a constant potential mini-focal X-Ray equipment, a swiveling device, a digital flat panel detector (imaging device) capable of acquiring and processing digital X-ray images, a display device to exhibit the captured and processed images, a means for defect recognition and evaluation of straight tube butt weld joints. The RTR system is configured to expose the butt joints to X-Rays, acquiring the X-Ray images of the butt joints and displaying in the display device, process the acquired images in respect of enhancing the image quality, detect the possible defects in the joints based on the processed data, classify the detected defects into respective categories, compare the defects with pre-stored values according to the standard and automatically indicate acceptance or rejection of the defects.