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Continuous structural monitoring of oil rig sub-sea structures for flooded member detection using underwater ultrasound
2007
Insight (Northampton)
Preserved Fulltext
An underwater ultrasound system for detecting flooding in the hollow sub-sea structures of offshore steel oil-rigs is presented. A sensor, attached to a subsea structure and powered by seawater, transmits underwater ultrasound chirpencoded signals to a real-time digital signal processing monitoring system at surface level. Experiments performed using a jointed steel pipe structure 1 ton in weight, with dimensions of 7 m × 0.5 m × 16 mm, completely immersed in seawater showed excellent
doi:10.1784/insi.2007.49.9.508
fatcat:ynmyqms46raefpt3mry52sdyte