American engineers have created a laser to quickly detect mines underground

American engineers created a LAMBDIS laser sensor for rapid detection of objects underground, in particular min.

This is reported by New Atlas.

The device differs from traditional detection methods in that it forms a grid of laser beams. This allows simultaneous measurement of ground vibrations at many points and speeds up the process of scanning the territory for the presence of mines.

Such an invention can help with the demining of territories in about 70 countries of the world where wars have been or are still going on, in particular in Ukraine.

How does a laser sensor work?
In order to detect objects hidden in the ground, you must first create a sound or seismic wave that will pass through the soil. Next, a 2D grid of lasers with sides 34 by 23 beams measures the ground vibrations that occur in response to the wave, and the device creates a map on which the places of uneven passage of the wave are marked — that's where the mines are hidden.

The LAMBDIS device can scan the surface faster than traditional laser sensors thanks to a large grid of laser beams and because it is less sensitive to its own motion, so it works normally on a platform moving at speeds up to 16 kilometers per hour.

In addition to detecting mines, this approach can be used to assess the reliability of bridges and other structures and study deformations in materials from which manufactured cars or even spaceships.