Applications - Overview
UXO Detection
Unexploded ordnances (UXO) pose a significant public safety hazard in many parts
of the world. They occur on or near the surface and down to depths of several
meters below the ground. One of the most established techniques for ordnance
detection is magnetics. This method is very effective at locating buried metallic
objects such as UXO. MGT is very successful in the use of drones which allow for
cost effective wide area scanning with near 100 % coverage and near 100 %
detection of subsurface ordnance or features indicative.
Mining
In recent years an important development in aeromagnetic surveys is the
application of unmanned aircrafts. Compared with ground surveys UAVs allow faster
and cheaper coverage of large areas. Such systems can be used at low altitude and
in hostile environments that would not allow helicopter surveys. The use of UAV is
ideal for collecting very dense data over small grids. Autonomous flight capabilities
are very efficient and enable using drape flying in which the data is collected at
constant terrain clearance.
Mining & Groundwater
Airborne Electromagnetic methods (AEM) are an efficient way in geological
surveying and have been widely used in mineral exploration, and environmental
monitoring. MGT has developed a Multicopter borne AEM technique that uses
sources located on the ground. The survey lines are flown perpendicular to these
sources. The fixed-source methods are most effective and have marked
advantages over alternative EM methods. A definite advantage of the UAV borne
semi-airborne survey is that the time taken to acquire the data is considerably less
than for a comparable ground survey.
3D Terrain Modelling
For field measurements, we use specific topographical UAVs with the accuracy of
GNSS RTK technology. Using our in-house built multicopters we can provide digital
surface models, 3D point clouds and orthophoto maps. The ground resolution is
between 1 cm / pixel and 10-20 cm / pixel, depending on clients request and task
specifications.
Forestry Management and Planning, Flood Modelling, Mapping and Cartography,
Urban Planning, Coastline Management, Oil and Gas Exploration, Quarries and
Minerals (Volumetrics and Exploration).