Simrad ME70 - REV C, Руководство оператора, Страница: 13 / 112

Simrad ME70
System description
The Simrad ME70
was the world’s first
quantitative multibeam
echo sounder for fishery
research applications.
The Simrad ME70 is a
high resolution scientific
multibeam echo sounder
with very low sidelobe
levels. It is dedicated for
collection of data in the
water column. The ME70
combines the large and
flexible sampling volume
of the multibeam swath
with the accuracy of
the quantitative scientific
echo sounder. It operates
in the frequency range of
70 to 120 kHz using 800 transmitting and receiving channels.
By adding bathymetry functionality to the standard system, the ME70 also provides
high resolution seabed mapping.
The Simrad ME70 is designed for fishery research applications, and provides the
following primary features:
• Transceiver operation control
• Sensor input control
• Information display
• Data output and record control
• Replay of previously recorded data
• Remote control and data subscription
• Calibration program
The Simrad ME70 scientific multibeam echo sounder is looking downwards, and it is
designed for high operating flexibility. The system includes a wide fan of stabilized
beams for fish behaviour studies, fish school characterization and other purposes. A
sector of these beams can be set up as split beams providing data for single target analysis
such as target strength measurements and target tracking. The sector of calibrated narrow
split beams with low side lobe levels and short pulse lengths allow for accurate biomass
estimation very close to bottom. The ability to adjust the athwartship centre angle of
the fan allows you to use the system for studying fish close to ridges. The design also
allows you to use all the beams over the full frequency range pointing in one direction
for frequency comparison.
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