Kongsberg EM 2040C, Maintenance Manual

Page: 14 / 124

12
378511/A
System units
Sonar head description
A transducer is a device that converts one form of energy to another. In an echo sounder
system the transducer converts between electric energy and sound. The EM 2040C has
transducers for transmit and receive in one housing, and we call it a "sonar head".
The EM 2040C sonar head is a short cylindrical
container with the transducers located on one end, and
with cable connector and fastening holes on the other.
The end with the transducers is the sonar head’s "face".
A single cable with an underwater plug, connects the
sonar head to the Processing Unit.
Processing Unit description
The Processing Unit is the central controlling device in the EM multibeam system. It is
provided to process the signals to and from the sonar head(s).
It is an industrial computer which is designed and
tested for rugged use.
The Processing Unit also supplies 48 Vdc power to
the sonar head(s).
One or two Processing Units may be required, depending on the system configuration.
Hydrographic Work Station description
The Hydrographic Work Station is the operator station of the EM 2040C.
A dedicated maritime computer is provided with the
EM 2040C Multibeam echo sounder.It is set up with
all necessary software.
The Hydrographic Work Station is based on the
Microsoft
® Windows ® 7 operating system.
The Hydrographic Work Station is normally mounted
on the bridge.
EM 2040C