By Jacqueline A. MacDonald, J. R. Lockwood
Analyzes the advantages and disadvantages of recent applied sciences in landmine detection and gives options for making improvements to and dashing up the method.
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Additional info for Alternatives for Landmine Detection
ACOUSTIC/SEISMIC SYSTEMS Acoustic/seismic methods look for mines by “vibrating” them with sound or seismic waves that are introduced into the ground. This process is analogous to tapping on a wall to search for wooden studs: materials with different properties vibrate differently when exposed to sound waves. These methods are unique among detection methods that identify the mine casing and components in that they are not based on electromagnetic properties. Innovative Mine Detection Systems 27 Description Acoustic/seismic mine detection systems typically generate sound (above ground) from an off-the-shelf loudspeaker, although there are many possible configurations.
Limitations The greatest limitation of acoustic/seismic systems is that they do not detect mines at depth because the resonant response attenuates significantly with depth. With current experimental systems, mines deeper than approximately one mine diameter are difficult to find. Also problematic is the slow speed of existing systems. Speed currently is limited by the displacement sensor, which senses the vibrations at the surface caused by the sound waves.
1998). Most victims are males of working age, and often they are unable to return to work. The Andersson et al. survey found that “households with a mine ______________ 1 Estimates of the total number of landmines, the number of victims, and the mine clearance rates are highly uncertain because only about 30 countries have conducted formal surveys (ICBL, 2001). S. State Department surveys. The estimates of the number of victims are from the International Campaign to Ban Landmines, which annually documents landmine injury data.
Alternatives for Landmine Detection by Jacqueline A. MacDonald, J. R. Lockwood