EM Induction

Detects the presence of metal with inductive coils.

Limitations:

  • Works best on metal mines, since others may contain very little (~1g) of metal
  • Lots of false positives from other metallic objects buried in former battlefields
  • Also has problems with differentiating from minerals in the ground

Perhaps useful as a primary detection technique, but every detection should be confirmed with some other technique.

Depth:
20cm (as of 2003)

Time:
Constant sweeping

Sensitivity:
High, but equally high false positive rate
Difficulty with low-metal mines (thus 20cm)

Power:
Usually 9V or 12V
Relitively low (~10hrs of use with small, hand-carried battery)
< 25W

Weight:
0.5lbs-5lbs

Cost:
$30-$30,000

More notes:
Standard demining procedures usually require investigation of all hits from a metal detector

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