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geoSCIENCE


3D WHERE YOU CAN AND CAN'T SEE

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geoSCIENCE


3D WHERE YOU CAN AND CAN'T SEE

3d multibeam sonar | 3d Laser scanning | 3d Photogrammetry 

AUS-ROV personnel use cutting edge technology when it comes to capturing spatial data. Our Hydrographic Surveyors, GIS Specialists, Geophysicists and Electronic Technicians are of the most distinguished professionals in the industry. When spatial scientific services are required, why not speak to the team at AUS-ROV and find out how we can provide unrivaled prices, products and professionals to ensure that you get the best possible project outcome.

Combined multibeam sonar and iLIDAR image produced by Norbit iWBMS (image courtesy of Norbit)

Combined multibeam sonar and iLIDAR image produced by Norbit iWBMS (image courtesy of Norbit)

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sonar technology


sonar technology


three-dimensional multibeam SONAR bathymetric survey

Bathymetry is the study and mapping of sea floor topography. It involves obtaining measurements of the depth of the ocean and is equivalent to mapping the topography on land. AUS-ROV use multibeam sonars to perform bathymetric surveys on behalf of our clients. Sonar can be used for locating near-surface seamounts and reefs, charting shipping hazards and understanding underwater environments. Engineering companies can use bathymetric data to determine location of subsea cables, oil and gas structures and sea floor pipelines. Often more specialised activities such as searching for missing planes, vessels or other man made objects on the sea floor are carried out. Australia's fishing industry also use bathymetric data to identify possible locations for deep sea fishing. The image below shows a section of bathymetric survey data that was carried out by AUS-ROV using the Norbit iWBMS Multibeam Sonar.

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For a brilliant explanation on the use of multibeam sonar to perform bathymetric survey of the ocean floor, Geoscience Australia have produced the video: 

Mapping the deep ocean: Geoscience Australia and the search for MH370 

Data obtained from Australian Government Department Geoscience Australia Website. For more information on bathymetry, please visit Geoscience Australia.

 

three-dimensional tunnel and pipeline profiling sonar

AUS-ROV have developed a system for 3D modelling of internal sections of pipelines and tunnels. The vLBV300 integrated with a single pencil-beam sonar has the ability to produce a helical profile within a tunnel or pipeline, even in zero visibility water.

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LASER SCANNING


LASER SCANNING


three-dimensional underwater laser scanning

Creating 3D models of submerged items using underwater laser scanning can reveal fine-scale three-dimensional features not identifiable though use of other conventional survey technologies. Laser scanning technology enables virtual interaction with underwater assets in detail not previously achievable. 

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STATIC LASER SCANNING

Laser scanning technology can be performed underwater from a stationary position. The ULS-200 can be deployed by divers, ROVs, crawlers, centralizers, and frames. It generates point clouds with a profile of 480 points across a 50 degree angle swath. The head rotates a full 360 degrees and can achieve sub-millimeter accuracy of targets such as large pipes, tunnels, damaged structures, and other underwater objects up to 2.5m distance. With a sample rate of up to 4750 points/sec the ULS-200 is perfect for 3D modelling close to medium range objects.

DYNAMIC LASER SCANNING

The ULS-500 PRO is 2G Robitics longest range underwater laser scanner. When fitted to an ROV with an inertial navigation system for positioning, the system can dynamically capture true-scale, high-precision 3D models of underwater features such as shipwrecks, pipelines or offshore O&G structures. Dynamic Laser Scanning reduces survey time as it enables capture of High Resolution 3D point clouds without static positioning, providing greater survey coverage with less bottom time. The ULS-500 is a leader in its class, for more information, visit 2G Robotics.

 
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WATCH THE VIDEO FROM 2G ROBOTICS and UNDERSTAND
HOW LASER SCANNING IS AFFECTED BY TURBIDITY IN WATER