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Volume 47, Issue 1 (January 2019)
Walk-through Metal Detector Testing and the Need to Emulate Natural Body Motion
(Received 13 June 2017; accepted 14 November 2017)
Published Online: 2018
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The detection performance of a walk-through metal detector (WTMD) is affected not only by the electromagnetic properties and size and shape of the test objects, but potentially also by the type of motion of the test object through the portal of the WTMD. This motion, it has been argued, can contribute to the uncertainty in detecting threat objects being carried through the WTMD. Typical laboratory-based testing uses a robotic system, or similar, to push a test object through the portal with a trajectory that is a straight line and has a constant velocity. This testing, although reproducible and accurate, does not test for those trajectories the are representative of natural body motion. We report the effects of nonrectilinear trajectories on the detection performance of WTMDs.
Larson, Donald R.
Entegra Corporation, Aurora, CO
Paulter, Nicholas G.
Materials Measurement Science Division, National Institute of Standards and Technology, Gaithersburg, MD
Troje, Nikolaus F.
Department of Biology, Queen’s University, Kingston, Ontario
Stock #: JTE20170342
Title Walk-through Metal Detector Testing and the Need to Emulate Natural Body Motion