Hand-Held UXO Discriminator
CALIFORNIA UNIV BERKELEY LAWRENCE BERKELEY LAB
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With prior funding UX-1225, MM-0437, and MM-0838, we have successfully designed and built a cart-mounted Berkeley UXO Discriminator BUD and demonstrated its performance at various test sites. It is a multitransmitter multi-receiver active electromagnetic system that is able to discriminate UXO from scrap at a single measurement position, hence eliminates a requirement of a very accurate sensor location. We have designed and built a sensor package of a 14-in 0.35 m cube based on the considerations described in the Introduction. This hand-held prototype incorporates the key features of the cart-mounted system a three orthogonal transmitters and ten pairs of receivers, and b difference or gradient measurements that significantly reduce the ambient and motion noise, and greatly enhance the sensitivity to the gradients of the target. We have also optimized the detector circuitry and improved electronics performance as well as many other system components. The next phase of this effort is to test the performance of the hand-held UXO discriminator prototype at a local test site.
- Magnetic and Electric Field Detection and Detectors
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