The SeaBat 7125 SV (for Surface Vessel) is a high-resolution multibeam sonar system that measures relative water depths over a 140° wide swath perpendicular to the vessels track. The new generation system offers a number of new and unique features including the ability to operate at two frequencies, 200kHz for long-range functionality and 400kHz for higher resolution and advanced diagnostics to increase survey efficiency.
The POS MV 320 E is a tightly-coupled positioning and motion reference system. The system provides accurate attitude, heading, heave, position, and velocity data, representing the latest in state-of-the-art inertial / GPS technology. The system maintains positioning accuracy under the most demanding conditions. The real-time data, including True Heave, can be used to produce high quality DTM's offshore, while post-processed Statistical Best Estimate Trajectory (SBET) data can be used to correct problems encountered during acquisition. A key component of the system is its Inertia Measurement Unit (IMU). The IMU contains 3 high quality gyroscopes and 3 high quality accelerometers. The IMU is entirely solid state for high reliability and is housed in its own rugged, water and salt resistant case. The IMU eliminates the need for often lengthy calibrations once the initial calibration has been completed; this offers the client an exceptional time and cost effective solution.
During the drydock the opportunity was taken to increase various areas of the decks to offer space for two additional winches and a 2D Seismic spread.
