A method of Ray digital imaging automatic Inspection on Tube to tube sheet welded joints Based on VC + +
نویسندگان
چکیده
The ray Inspection technology is applied for the characteristics of the tube to tube sheet welded joints, and a linear diode arrays is used as the receiving device. The system drives the digital stepper motor control card by using VC++, and the output is subdivided to drive the rotating devices to accurately rotate a week. The linear diode arrays is fixed on the rotating devices so it can accomplish circle scan and then the signals are transferred to the PC to be further transformed to images and finally display on the screen. The algorithm of transformation from square matrix to circle-scanning stitching images is particularly discussed. Finally, according to the ray digital imaging automatic detection system, the special image processing methods are introduced, which were used to optimize the image. Keyword: tube to tube sheet welded joints; digital imaging; image processing; images stitching
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