Microphones vs min

The military industry knows a lot of ways and methods of detecting and clearing mines, the good of this good on our planet, alas, is a lot. However, the development and production of the overwhelming majority of devices that make it possible to search for explosives with relative safety for health costs the army a considerable amount. For rich countries, it does not matter, but the poorer states are spending thousands of dollars on equipping one sapper - inadmissible luxury. How to reduce these costs? With a microphone in hand, a group of researchers from the Georgia Institute of Technology (USA) is responding.

Ordinary commercially available microphones - that, it turns out, may well fit to detect mines. Theoretically, even completely inexpensive microphones are capable of performing the task set for a sapper not worse than modern radars. In any case, scientists are desperately trying to convince the military in this. As evidence of the relative effectiveness of the new method, researchers demonstrated the results obtained when testing the system. The microphone “probe” really allowed to detect a mine that was buried at a shallow depth, but allowed to make a much less clear picture of the investigated surface than modern radar detectors.

Thus, scientists believe that if the technology succeeds in at least a little refinement, the military will be able to significantly reduce the cost of demining.

via New Scientist