TY - JOUR
T1 - Continuous structural monitoring of oil rig sub-sea structures for flooded member detection using underwater ultrasound
AU - Mijarez, Rito
AU - Gaydecki, Patrick
AU - Burdekin, Michael
PY - 2007/9
Y1 - 2007/9
N2 - 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 sub-sea structure and powered by seawater, transmits underwater ultrasound chirp-encoded 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 performance using a central excitation frequency of 38 kHz, over distances of 100 m.
AB - 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 sub-sea structure and powered by seawater, transmits underwater ultrasound chirp-encoded 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 performance using a central excitation frequency of 38 kHz, over distances of 100 m.
U2 - 10.1784/insi.2007.49.9.508
DO - 10.1784/insi.2007.49.9.508
M3 - Article
SN - 1754-4904
VL - 49
SP - 508
EP - 510
JO - Insight: Non-Destructive Testing and Condition Monitoring
JF - Insight: Non-Destructive Testing and Condition Monitoring
IS - 9
ER -