WIDEBAND MEASUREMENT OF THE MAGNETIC SUSCEPTIBILITY OF SOILS AND THE MAGNETIC POLARIZABILITY OF METALLIC OBJECTS

摘要

Broadband electromagnetic induction (EMI) sensors have been shown to be able to reduce false alarm rates and increase the probability of detecting landmines. To aid in the development of these sensors and associated detection algorithms, a testing facility and inversion technique have been developed to measure the magnetic response of soils and the magnetic polarizability of metal targets. When theoretical predictions are possible, these measurements show good agreement with theory.