Patent ID: 6064209
Filing Date: 2000-05-16
Classification: F41H,G01V

Abstract:
A method of sweeping a patch of ground for unexploded ordnance, said method comprising the steps of:transmitting a proving electromagnetic waveform into the patch at a power greater than that required to induce a measurable electromagnetic field in unexploded ordnance wherein any unexploded ordnance which is sensitive to that waveform will either detonate or not detonate;transmitting a detection electromagnetic waveform into the patch wherein the detection waveform has the same characteristics as the proving waveform except that the detection waveform has a power which is lower than that of the proving waveform but is sufficient to induce a measurable electromagnetic field in the unexploded ordnance; andmeasuring the electromagnetic field induced in the unexploded ordnance by the detection waveform for identifying the presence of unexploded ordnance.