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6205s2 BATHYMETRIC AND SIDE SCAN SONAR
0025262_REV_A
3.1.1
Sonar Arrays
The 6205s2 provides single-frequency bathymetry and simultaneous dual-frequency side-scan sonar. The
6205s2 Swath Bathymetry and Side Scan Sonar Head are available in a variety of frequency options:
•
520 / 850 kHz Dual Frequency Side Scan with 520 kHz Bathymetry Data
•
520 / 850 kHz Dual Frequency Side Scan with 850 kHz Bathymetry Data
•
520 / 1600 kHz Dual Frequency Side Scan with 520 kHz Bathymetry Data
•
850 / 1600 kHz Dual Frequency Side Scan with 850 kHz Bathymetry Data
The frequency sets listed above were chosen to provide optimum results for any given water depth up to
50m (165ft) below the transducer. The 6205s2 is pressure-rated for water depths between 1m – 50m (3ft
– 164ft). The optimal frequency depends on survey requirements.
The 6205s2 utilizes two arrays (port and starboard) to map the seafloor, much like a dual-head multibeam
system. Each 6205s2 array is constructed using ten independent longitudinal PZT elements and two multi-
segment PZT strings. The two multi-element strings (one per side scan frequency) are used for the
transmit function and as a full-resolution side-scan receiver. The remaining ten elements make an
approximately half-wavelength spaced array of sensors for its bathymetry receiver.
3.1.2
Sonar Head Housing
The pressure housing and end caps are made of painted hard coat anodized aluminum. The nose cone
and array covers are made of a urethane elastomer. The housing supplies a streamlined body for efficient
underwater maneuvers rated up to 10 knots while protecting the SVS, arrays, and deck cable connections.
CAUTION!
Although the 6205s2 can handle transit up to 10 knots, survey
speeds should be constrained to 4-5 knots or less. EdgeTech recommends
recovering the Sonar Head from the water during transit above 7-8 knots
(unless the unit is installed inside a suitable hull fairing).
3.1.2.1
Sonar Processor
The 6205s2 Sonar Processor has a built-in Windows® Embedded PC. The main firmware installed on the
embedded PC is Sonar.exe, which controls the sonar’s hardware and performs specific functions, such as
signal processing and time synchronization of the acquired data.
Summary of Contents for 6205S2
Page 32: ...2 32 Figure 2 2 6205s2 Sonar Head with Adaptor Flange ICD...
Page 33: ...2 33 Figure 2 3 6205s2 Side Scan Transducer...
Page 34: ...2 34 Figure 2 4 6205s2 Side Scan Transducer Details...
Page 35: ...2 35 Figure 2 5 6205s2 Deck Cable Wiring Diagram...
Page 36: ...2 36 Figure 2 6 6205s2 GNSS INS Deck Cable Wiring Diagram...
Page 37: ...2 37 2 6 2 6205s2 Topside Figure 2 7 6205s2 Rack Mounted Topside...
Page 38: ...2 38 Figure 2 8 6205s2 Rack Mount in Case...
Page 41: ...3 41 3 1 2 2 Sonar Processor Endcap and Pinout Drawings Figure 3 5 6205S2 Forward End Cap...
Page 42: ...3 42 6205s2 BATHYMETRIC AND SIDE SCAN SONAR 0025262_REV_A Figure 3 6 6205s2 Aft End Cap...
Page 46: ...3 46 Figure 3 11 6205s2 Acoustic Center Location X Y Z and Bolt Pattern...
Page 47: ...3 47 Figure 3 12 6205s2 with Adaptor Flange Acoustic Center Location X Y Z and Bolt Pattern...
