Kongsberg EM3002

The EM 3002 is a new advanced multibeam echo sounder with extremely high resolution and dynamically focused beams. It is very well suited for detailed seafloor mapping and inspection with water depths from less than 1 meter up to typically 200 meters in cold oceanic conditions. Maximum depth capability is strongly dependant on water temperature and salinity - up to 300 meters is possible under favorable conditions. Due to its electronic pitch compensation system and roll stabilized beams, the system performance is stable also in foul weather conditions.

The spacing between soundings as well as the acoustic footprints can be set nearly constant over the swath in order to provide a uniform and high detection and mapping performance. Dynamic focusing of all receive beams optimizes the system performance and resolution for short range applications such as underwater inspections.

Technical Specifications

Frequency range............................................. 293, 300, 307 kHz;
Max ping rate................................................... 40 Hz;
Depth resolution.............................................. 1 cm;
Depth range…………………………………....... 0.5-150 m;
Pitch stabilisation............................................. Yes;
Roll stabilisation............................................... Yes;
Heave compensation....................................... Yes;
Beamwidth....................................................... 1.5 º х 1.5 º;
Beam spacing.................................................. equidistant or equiangular;
Maximum angular coverage:
Single sonar head........................................... 130 degrees;
Dual sonar heads............................................ 200 degrees.

Fertoing is in possession of 9 Kongsberg EM3002 sets located in Murmansk, Yuzhno-Sakhalinsk, St.Petersburg, Sochi, and Arkhangelsk and one Kongsberg EM 3002D set onboard the survey boat Gladius.