Kongsberg SBP 29, Руководство по установке

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10
451253/A
System units
Topics
Transducer arrays, page 10
Cabinets and Hydrographic Work Station, page 11
Transducer arrays
The acoustic transmissions are made using a dedicated transducer array. The physical
length of the transmit transducer array depends on the beamwidth you have chosen for
your system. Reception of the echoes are made using the same wideband transducer
array as the EM 124 or EM 304.
The width of the transmit array is 80 cm. The depth is 35 cm. The physical length of the
transmit transducer array depends on the beamwidth you have chosen for your system.
Beamwidth Length
3º 7.5 m
6º 3.8 m
12º 1.9 m
The transmitter array is mounted in parallel with the vessel’s keel. This is usually side by
side with the EM 124 or EM 304 transmitter array. For a best performance, the SBP 29
system must use a three degrees transmitter array. However, it is normally inconvenient
if the SBP 29 array is longer than the EM 124 or EM 304 array.
The lengths of the 0.5º, 1º and 2º EM 124 transmitter are 15.2, 7.8 and 4.0 meters,
respectively.
The lengths of the 0.5º, 1º and 2º EM 304 transmitter are 6.0, 3.0 and 1.5 meters,
respectively
The rows of the following table show what is expected to be the most common
combinations of EM and SBP 29 system sizes. Since the two systems share receiver
array there is a fixed relation between Rx opening angles. In the table are listed
combinations of “best match” for the lengths of the EM and SBP transmitters.
SBP 29 Installation Manual