MAGNETIC DETECTION OF MUNITIONS BURIED BENEATH A CONCRETE RUNWAY

Authors
  1. McFee, J.E.
  2. Das, Y.
  3. Bell, M.
  4. Toews, J.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN)
Abstract
A study was conducted to determine whether magnetometers are capable of detecting ferrous objects the size of small bombs, buried beneath an airfield runway (runway denial munitions). Computer modelling showed that steel spheres of radii 0.10 m and 0.0381 m, which are simular in steel content to small bombs and bomblets, could be detected at depths of up to 2.5 m and 1.0 meters respectively using standard commercial magnetometers, provided no substantial amounts of reinforcing steel were present. A self-contained vehicle portable data acquisition system, consisting of a minicomputer, two optically pumped cesium vapour magnetometers, position encoders and a custom interface, was developed to allow two-dimensional magnetic maps of runway surfaces to be obtained.
Report Number
409 —
Date of publication
15 Jan 1985
Number of Pages
43
DSTKIM No
85-00982
CANDIS No
45805
Format(s):
Hardcopy;Originator's fiche received by DSIS

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