Quote:
Originally Posted by Mike(Mont)
The laser is not pointed at the target. ... So they measure how long it takes for the laser light to run through the cable to the sensor. A shorter cable takes less time.
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Am I saying something different?
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Laser is used as comparative light measurement and not as detecting mean."
But it is still question of detecting 500m underground through uneven soil environment in comparison to 500 m of detecting in homogeneous and magnetic unproblematic air medium together with enormous big ferromagnetic target (truck) at 500m.
In soil this apparatus could not perform much better than other known magnetometer technologies on ferro targets. No to say that it cannot detect precious metals at all. So little hope to use this as some sort of LRL. Hopeless technology for LRL believers.