Radioscopic in-situ inspection of walls of pipe, especially flexible pipe, comprises passing detected beam through pipe wall, then digitizing and analyzing to identify any flaws

摘要

Radioscopic inspection of the walls of a pipe comprises placing an ionizing beam detector (2) inside the pipe (5), placing a source of ionizing radiation (3) outside the pipe opposite the detector and digitizing the signals from the detector. The detector comprises a device for transforming the detected beam into a visible beam, or a brightness amplifier or a luminescent digitizing screen. A device (7) for returning visible beams, such as a mirror or prism, is placed in the pipe to transmit visible beams away from the ionizing beam. The device includes a digital camera away from the ionizing beam and a device (14) for motorization to allow the detector to rotate about the axis of the pipe. There is a device for positioning the detector opposite the source. An Independent claim is also included for controlling the walls of a pipe by placing a source of ionizing radiation outside the pipe and a detector of ionizing radiation inside the pipe. The detected beam is transformed after the passage through the wall into a visible beam and a device for returning the visible beam are placed in the pipe to transmit the beam away from the zone of the ionizing beam. The image given by the visible beam is digitized and treated to detect faults in the pipe wall.