Handheld, Broadband Electromagnetic UXO Sensor: Cost & Performance Report
GEOPHEX LTD RALEIGH NC
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The broadband electromagnetic sensor improvement and demonstration undertaken in this project took the prototype GEM-3 and evolved it into an operational sensor with increased bandwidth and dynamic range, and enough memory and processing power to allow efficient data acquisition while decreasing the weight for ease of operation. Through this program, the GEM-3 has evolved from prototype into a fully operational, full-scale instrument, and the objective of this demonstration was to verify its capability to perform under realistic conditions of buried UXO contamination. The goal was to combine multi-frequency inphase and quadrature data in an optimal way to identify local anomalies that are potentially UXO. The technology demonstration scope was all-encompassing, including blind-grid testing of three configurations handheld 40cm sensor, pushcart mounted 96cm sensor, and ATV towed 96cm sensor challenge scenarios with woods and moguls using the handheld sensor and large open fields using the large coil with pushcart and towed configurations. The moguls area was covered with snow, the woods and parts of the open area were covered with several inches of water.
- Miscellaneous Detection and Detectors
- Electricity and Magnetism
- Radiofrequency Wave Propagation
- Ammunition and Explosives