Non-destructive testing of GIS equipment by X-ray digital im

GIS equipment is one of the important equipments of the power system. Its operating status plays a vital role in the safe, stable, and reliable operation of the power grid. Once a GIS failure occurs, it takes a long time to repair, which endangers the safety of the power grid and brings huge economics. loss. Therefore, for the detection of GIS equipment, X-ray digital imaging technology is used to visually and non-destructively inspect the internal situation of the GIS equipment without disassembling the equipment and damaging the environment, and provide a basis for equipment condition maintenance and auxiliary decision-making.

The three types of defects of foreign objects, assembly and materials common to GIS equipment are simulated and visualized non-destructive testing is performed using X-ray array imaging technology. At the same time, X-ray digital imaging technology is a powerful supplement to the reliability and accuracy of GIS equipment's internal defect detection, especially the detection methods.

X-ray technology is the representative of digital display detection technology, which has a wide range of applications in industrial non-destructive assessment and testing. The traditional X-ray imaging technology uses photosensitive film for imaging, which has the advantages of high spatial resolution, the disadvantage is that it does not have real-time performance, the cost is high, and it is not conducive to image storage, management, and communication.

Digital detectors are now gradually replacing film radiography, which has economic and ecological advantages. Computer radiography and direct digital radiography (DR) are typical techniques that replace film radiography. DR technology is a flat panel detector that directly receives the image signal set by X and transmits it to a computer for imaging. There is no intermediate link. The imaging quality is high and the speed is fast. It can achieve real-time imaging display and online detection. Therefore, DR technology is the current development trend of X-ray digital imaging technology.

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