Kongsberg EM 3002, Product Description

Page: 8 / 34

EM 3002 / Base version
2
855-164929 / A
The EM 3002 can be delivered either as a basic multibeam echo
sounder instrument for system integration, or as a complete
stand-alone seabed mapping system. The Operator Station, a
high-performance PC workstation, will always include the
necessary operator controls for setting and running the system,
data logging, and system testing. Normally the Operator Station
also includes an extensive set of graphical displays for data
quality control, but third-party software may instead be installed
for this purpose.
Postprocessing software for the EM 3002 is available from both
Kongsberg and third-party suppliers. A world-wide marketing
and service organization having many years of multibeam
experience is available for supporting the EM 3002.
→
A system overview is shown in figure 1.
→
Data example is shown in figure 9 on page 18.
System characteristics
Main units
The basic Kongsberg EM 3002 multibeam echo sounder
consists of three (or four) units:
•
Sonar Head(s)
•
Processing Unit
•
Operator Station
The system may be delivered either with one sonar head (EM
3002S) or with two sonar heads (EM 3002D).The dual sonar
heads can be arranged in different ways. The most common
configuration is to mount the two sonar heads tilted about 40
degrees to port and starboard in order to obtain a wider swath
coverage.
A complete mapping system will in addition include a vessel
motion sensor, heading sensor, sound speed sensor and a
positioning system. For ROV applications a telemetry system is
required for data communication between subsea units and
surface electronics.
Sonar Head
The EM 3002 Sonar Head contains the transducers and all
transmitter and receiver electronics. The diameter of the Sonar
Head is 332 mm and it’s height 119 mm. The sonar head
material is titanium, making the unit robust, durable and 100%
non-corrosive. The transducers are replaceable in the event of
damage for example due to grounding.