Quote:
Originally Posted by Carl-NC
That was a very interesting paper, and confirms what most of us are saying. The land mine used in the test is likely plastic with a thermal TC considerably longer than metal, yet it was exceedingly difficult to detect. This suggests that perhaps a treasure cache buried just under the surface of dry sand could be detected with an IR camera.
|
Long time I insist in it...
Just with the beam of 2 IR leds (for me, better), long time ago (since the end of the 70s) we have experimented... You can added lenses for more distance, but today there are IR leds with incorporated lenses wich can cover 100 meters.