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Standardized Analysis for UXO Demonstration Sites

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Final rept.

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The Standardized UXO Technology Demonstration Sites were established by the Environmental Security Technology Certification Program ESTCP under project MM-0103 to ensure that critical unexploded ordnance UXO technology performance parameters such as detection capability, false alarm rates, discrimination, reacquisition, and system efficiency are determined through standardized test methodologies, procedures, and facilities. This project has performed standardized analyses of data collected at the two standardized sites at Aberdeen Proving Ground APG in Maryland and Yuma Proving Ground YPG in Arizona in order to understand the factors that affect UXO detection and discrimination. We focus on electromagnetic induction EMI sensor and total field magnetometer systems. The EMI sensors EM61 and EM63 excite eddy currents in the target with an electromagnetic pulse primary field and measure the induced field associated with the eddy current decay at a range of times after the primary field cutoff. The magnetometers measure distortions of the earths magnetic field caused by ferromagnetic targets. The standardized sites and the data sets used in the analyses reported here are described in Section 2. The demonstrator data sets analyzed in this project were collected by the Naval Research Laboratory NRL, Tetra Tech Foster Wheeler, Inc. TtFW, Army Corps of Engineers Engineering Research and Development Center in Vicksburg ERDC, Shaw Environmental, Inc., and NAEVA Geophysics. The analysis focused primarily on systems using total field magnetometers and systems based on the EM61 MkII time-domain EMI sensor. ERDC used the EM63 sensor. It is similar to the EM61, but measures the EMI response over a greater range of time decay than the EM61. Section 2 also includes brief discussions of the physical principles of the sensors and the interpretation of data collected using the sensors.

Subject Categories:

  • Electrical and Electronic Equipment
  • Logistics, Military Facilities and Supplies
  • Ammunition and Explosives
  • Electricity and Magnetism
  • Electromagnetic Pulses
  • Solid Wastes and Pollution and Control
  • Ecology

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