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device for the automatic positioning command and the cart for the x-ray of welds of pipes
device for the automatic positioning command and the cart for the x-ray of welds of pipes
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机译:自动定位命令装置和用于管道焊缝X射线的推车
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摘要
The welded joints of newly constructed pipelines are verified by X-ray, utilizing equipment mounted to a self-propelled trolley that travels along the bore; the trolley is controlled and positioned using a magnetic source (1) applied by hand to the outside of the pipeline, and a receiver (5), located inside the pipeline, which consists in two coils (6, 7) suitably spaced apart and fitted to the trolley in such a way as to be invested by the magnetic field generated externally of the pipe wall.
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