An automatic guided wave pulse position modulation system, using steel tubes as communication channel, for detecting flooding in the hollow sub-sea structures of offshore oilrigs is presented. The system employs a smart sensor and modulator that transmit guided wave pulses in the range of 40 kHz and is composed of a PZT element, electronics and batteries. The demodulator is made of a PZT ultrasound transducer, a DSP board and a module based on a microcontroller, which performs automatic detection of guided wave energy packets. Experiments carried out in steel tubes 1.5 m x 0.27 m x 2 mm, in air, have successfully detected automatically guided wave encoded information.
An automatic guided wave pulse position modulation system using steel pipes as a communication channel for flood detection in steel offshore oilrigs
Ein automatisches Pulsphasenmodulationssystem mit geführter Schallwelle unter Verwendung von Stahlrohren als kommunizierende Röhre zum Hochwassernachweis an Bohrinselplattformen
2008
6 Seiten, 6 Bilder, 16 Quellen
(nicht paginiert)
Aufsatz (Konferenz)
Datenträger
Englisch
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