Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Patent
1998-05-18
2000-05-16
Oda, Christine K.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
324345, 89 113, G01V 311
Patent
active
060642092
ABSTRACT:
A two-step process for clearing unexploded ordnance ("UXO") from the ground. First a high power electromagnetic transmitter sweeps the ground area to be decommissioned. Secondly a lower-power time-domain electromagnetic transmitter or metal detector sweeps the same area to locate UXO. The high power transmitter employs a waveform of having the same frequency and pulse duration as that of the metal detector but does so with at least twice the power, Firstly, when the higher power waveform is applied to the ground, UXO which does not trigger and detonate or "function" is proved as non-functioning at lower detection power. Subsequently, the ground area can then be safely scanned by human personnel with impunity, applying the more accurate, lower power metal detector. The detected locations of unexploded ordnance are recorded for subsequent manual removal.
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Oda Christine K.
Taylor Victor J.
Xtech Explosive Decontamination, Inc.
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