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Remote TechnologyROTV - FOCUS 2 - TRIAXUSMore than 17 years of experience and constructive customer feedback is behind our latest generation of ROTV systems. FOCUS 2 and TRIAXUS forms our flexible ROTV product range and offers our customers a wide spectrum of options. The systems can carry a broad range of sensor options including scanning sonar, sidescan sonar, cable tracking systems, navigation systems and various sensors from an endless list of oceanographic sensors. Towed underwater vehicles TRIAXUS Adding a new dimension to towed vehicles, the TRIAXUS is the natural step forward from the existing 2D towed underwater vehicle technology to a true 3D towfish. The TRIAXUS uses state of the art computer technology and fibre optic telemetry for vehicle and sensor communication. The towed underwater vehicles TRIAXUS features flaps for vertical as well as lateral control. A powerful industrial PC controls the towed vehicle based on input from the onboard vehicle control sensors according to the preprogrammed flight path. The TRIAXUS is developed for high-speed oceanographic data acquisition work, and is designed to undulate between 1 and 350 metres*. Lateral offsets of up to 80 metres to either side of the ship is possible, enabling the vertical profiling to be carried out in an undisturbed water column. Towing speed* between 1 and 10 knots and vertical speed* of up to 1 metre per second are possible. The towed underwater vehicles has been designed using the latest carbon fibre moulding technologies and the Danish Maritime Institute (DMI) has supplied the hydrodynamic design. The embedded telemetry system is based on the successful NEXUS fibre optic multiplexer system, allowing interface of up to 9 additional sensor packages using the Plug and Play principle. *) Depending on vehicle version, tow cable and seastate. www.triaxus.com FOCUS 2 - Underwater Vehicles The FOCUS-2 is the latest generation ROTV in the FOCUS and TRIAXUS family and will replace the existing FOCUS models. The underwater vehicle is constructed using carbon fibre and is based on the successful TRIAXUS towed underwater vehicle design. The FOCUS-2 uses state of the art computer technology and fibre optic telemetry for underwater vehicle and sensor communication providing high data capacity in a very small package. A powerful industrial PC controls the vehicle, based on inputs from the onboard vehicle control sensors according to the pre-programmed flight path. The underwater vehicle (ROTV) is towed by a small diameter low drag electro-optic cable that supplies the power and control data to the vehicle. The high volume of data, generated by the on board instrumentation and sensors, is transmitted to the surface via a NEXUS based fibre optic multiplexer system. The FOCUS-2 can operate with a number of acoustic survey sensors and instruments simultaneously ensuring maximum usage of ship time. The system is comprised of the towed platform together with a user selected instrumentation package; an electro-optic tow cable and a winch with a combined fibre optic & electrical slip ring and a user friendly control and display unit with input and output for user selected sensors and instruments. The system operates to 400 metres depth at 5 knots with a controllable horizontal movement of +/- 80 metres. The cable layback ratio is a function of tow speed i.e. 1:5 @ 5 knots & 1:3 @ 3 knots. MVP - Moving Vessel Profiler The Brooke Ocean Technology Moving Vessel Profiler is a unique data collection system designed to measure sound velocity and oceanographic data near vertically from a high speed surface vessel. The winch launch system automatically deploys a free fall fish and cable at a rate, which overcomes the effect of the forward movement of the ship. On reaching deployment the winch is braked and recovered automatically to the surface where it can be launched repetitively from a towed position or winched to the overboard sheave and latched. The MVP - Moving Vessel Profiler is computer controlled and thus does not require the hands on technical monitoring required by comparable systems. The system offers considerable time and cost savings over expendable and on station casting. The MVP - Moving Vessel Profiler fish has a significant payload thus extending the scope, over expendables, of data available form a single profile. The Moving Vessel Profiler - MVP has been developed jointly with and is currently in service at the Bedford Institute of Oceanography, DFO, Canada. ROV Systems The MacArtney Group offers a complete range of electric powered ROV systems for all professional applications. The range currently extends from the portable Seaeye Falcon ROV to the medium work class Panther Plus ROV. All Seaeye ROVs can accommodate a standard range of tools and accessories and we can provide a custom design service for special tools and ROVs for any unique application. Seaeye also design and manufacture a range of ROV handling systems as well as a choice of Tether Management Systems (TMS), cameras, lights and subsea metal shell connectors. Widely regarded since 1987 as the leading supplier of ROVs to the offshore oil and gas industry, Seaeye now also supply ROVs to number of the world's leading navies for security, MCM, salvage and diver support tasks as well as to coastal and inshore operators for observation, inspection, environmental work, deep tunnel penetration and survey operations. With over 200 ROVs delivered worldwide through an international network of distributors you can be confident of this company's track record and continued determination to support our customers with increasingly capable and versatile systems. |
