Specialist Hydrographic Surveyors

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Clydeside Hydrographic Survey

bathymetric surveys
Side Scan Sonar
side scan sonar surveys
Shallow Seismic
shallow seismic surveys
oceanographic surveys
Pipe Route
pipe route surveys
Site Investigation
inshore site investigation


Reson Seabat 8125 Multibeam Echosounder

Reson Seabat Mulitbeam Echosounder

Focused 0.5° beams - 240 beams - 2.5 cm near field resolution - 6 mm depth resolution - 120° sector coverage.

The SeaBat 8125 can be used in the following application areas: micro-bathymetry, mine location, extremely high resolution imaging.

The SeaBat 8125 is the first wide-sector, wide-band focused multibeam sonar ever to be deployed. Utilizing 240 dynamically focused receive beams, the system measures a 120º swath across the seafloor, detects the bottom, and delivers the measured ranges at a depth resolution of 6 mm. The backscatter intensity image is displayed in real time on the sonar display.

The 8125 can be controlled through its native graphical user interface or from a multibeam data collection system, such as SeaBat 6042 version 7.

The system can be mounted on a survey vessel or deployed on an ROV at depths down to 1500 m (standard 600 m, 1500 m is an option). The high-speed data uplink is carried on a standard SeaBat copper cable for surface installation. A fibre-optical interface is available for ROV deployment.

Two 8125 systems can be configured as a dual-headed system, and for complete control the SeaBat 6043 image fusion and controller merges the images of the two sonar heads into one.

Frequency: 455 kHz
Depth Resolution: 6 mm
Swath Coverage 120°
Max Range: 120 m
Number of beams: 240
Along-Track Beamwidth: 1°
Across-Track Beamwidth: 0.5°
Accuracy: IHO Special Order
Operating Speed: Up to 12 knots
Max. Update Rate: 40 times/sec
Transducer depth rating: 600m

Clydeside Surveys operate the 8125 for bathymetry and special applications such as quaywall inspection, via HySweep.

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Clydeside Surveys Limited, Dunsyston, West Glen Gardens, Kilmacolm, Renfrewshire, PA13 4PX
Telephone 0845 00 66 211