Researchers at the Georgia Institute of Technology in the US have built a test facility to evaluate and enhance sensors designed to detect buried land mines.

The researchers will use a unique automated system to measure the response of individual electromagnetic induction sensors or arrays of sensors against buried land mines.

Georgia University professor Waymond Scott said that little is known about how signals collected by sensors from land mines changed when the mines were buried underground at odd angles.

“This facility allows us to collect measurements of typical targets and clutter objects with respect to location and orientation, which would be very difficult to measure in the field due to the difficulty of accurately placing and rotating the target,” said Scott.

Advance electromagnetic induction sensors work by sending out magnetic fields and detecting the response from the electric currents generated when the field interacts with a metallic target. These sensors tell the difference between a land mine and harmless buried metal objects.

Experiments conducted in the facility will ultimately help researchers better discriminate between land mines and harmless metal objects, which will lead to reduced false alarm rates.

By Daniel Garrun.