I did a Qinetiq funded simialr project about twelve years. We were able to detect metal and non metal targets about 3cm away from the soil.
With regards
Tom
Dr Tom Bach
Research Director
Sensatech Designs Ltd
18 Margaret Street
Brighton BN2 1TS UK
tel 44 (0)1273 698749
tel 44 (0)1273 670276
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