Title :
TOBI, a vehicle for deep ocean survey
Author :
Flewellen, C. ; Millard, N. ; Rouse, I.
Author_Institution :
Inst. of Oceanogr. Sci., Deacon Lab., Godalming, UK
fDate :
4/1/1993 12:00:00 AM
Abstract :
TOBI is an instrumented vehicle which is towed close to the bottom of the deep ocean from a ship, and uses sound to form detailed images of the sea floor. The authors describe the mechanical design of this vehicle and its instrument package. The way in which sonar images are formed is discussed and the acoustic design parameters are considered. Signals are frequency multiplexed on to 10 km of armoured coaxial towing cable, which also provides the power to the vehicle and a two-way communication link. At the ship these signals are separated, displayed and logged onto magneto-optical cartridges. Examples of results are shown and some future developments are identified
Keywords :
computerised instrumentation; geophysical equipment; marine systems; oceanographic equipment; sonar; underwater sound; 10 km; 6000 m; TOBI; acoustic design parameters; armoured coaxial towing cable; deep ocean survey; deep tow; detailed images; frequency multiplexed signals; future developments; geophysics; instrument package; instrumented vehicle; magneto-optical cartridges; marine geology; mechanical design; sea floor; seafloor; sonar images; towed ocean bottom instrument; two-way communication;
Journal_Title :
Electronics & Communication Engineering Journal
