WEBVTT

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It's estimated that up to 10% of

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ordnance does not detonate when it

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impacts training ranges and combat

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zones . That means that even after a

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conflict or live fire training are over ,

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sometimes even decades later .

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Unexploded bombs , missiles , and

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artillery shells still pose a deadly

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threat to military personnel and

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civilians . Finding them and cleaning

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them up , usually done by personnel on

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the ground , is dangerous work , but a

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team of researchers from the US Army

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Corps of Engineers , Cold Regions

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Research and Engineering Laboratory in

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Dartmouth College is pioneering a new

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way to keep humans out of harm's way by

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using drones to find and identify

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unexploded ordnance . We use what's

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called electromagnetic induction , so

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generally we just create a really

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strong magnetic field , and that

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magnetic field , it interacts with

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these metallic targets that are in the

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subsurface . We're able to use physics

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to look at that magnetic field and say ,

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OK , this metal target in the

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subsurface , what is its shape ? What

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is its size . Able to figure out what

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its shape is and what its size is and

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what its depth is as well , we can say

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that is going to be a munition or

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that's going to be a Coke can . The

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custom built electromagnetic array that

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detects and categorizes the unexploded

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ordnance is light enough to be flown by

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a Group 2 octo rotor drone that is

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already widely used by the US Army .

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This is intended to ultimately be a

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rapidly deployable mid-scale solution .

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This is the best way to enter an

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austere environment and do some

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investigation . I mean , we would

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certainly rather keep people out of

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harm's way and we can put equipment in

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their place .