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Instrument Information

Identifier: Kongsberg EM3002
Docucomp UUID: 219b2972-68e0-4489-944d-9e57394de73d
Instrument / Gear: Instrument
Instrument Type: Multibeam Echosounder
Description:

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 EM 3002 system uses frequencies in the 300 kHz band. This is an ideal frequency for shallow water applications, as the high frequency ensures narrow beams with small physical dimensions. At the same time, 300 kHz secures a high maximum range capability and robustness under conditions with high contents of particles in the water. EM 3002 uses a powerful sonar processor unit in combination with 1 or 2 compact sonar heads. The high computing power of the EM 3002 sonar processor makes it possible to apply sophisticated and exact signal processing algorithms for beamforming, beam stabilisation, and bottom detection. In High Density processing mode the system has close to uniform acoustic footprints and resolution over the whole swath width, and therefore a much improved capability to detect objects and other details on the bottom. EM 3002 will in addition to bathymetric soundings, produce an acoustic image of the seabed. System options include dual sonar heads (EM 3002D), water column data logging, and an extended transducer depth rating of 1500 m for underwater vehicles. The EM 3000 multibeam system was first produced in 2004 and is being phased out in 2013. Its replacement is the EM 2040.

Record Created: April 10, 2018 2:05 PM UTC by edmjira.inport@noaa.gov
Record Last Modified: April 10, 2018 2:05 PM UTC by edmjira.inport@noaa.gov
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