Title :
Numerical emulator for walk-through metal detectors using 3-D indirect boundary integral equation method
Author :
Im, Chang-Hwan ; Jung, Hyun-Kyo
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
6/1/2005 12:00:00 AM
Abstract :
An emulator based on three-dimensional (3-D) numerical techniques was developed to simulate the performance of walk-through metal detectors with AC field excitation. The indirect boundary integral equation method was found to be most appropriate to analyze the 3-D AC magnetic field, including moving conductors. In this paper, the developed tool was applied to various conditions, and the result showed sufficient possibility to be successfully applied to the design of various types of metal detectors.
Keywords :
boundary integral equations; electromagnetic devices; electromagnetic induction; magnetic fields; 3D indirect boundary integral equation; 3D numerical techniques; AC field excitation; numerical emulator; walk-through metal detectors; Conductors; Detectors; Eddy currents; Integral equations; Magnetic analysis; Magnetic fields; Motion detection; Object detection; Security; Weapons; Eddy current; indirect boundary integral equation method (IBIEM); three-dimensional motion effect; walk-through metal detector;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2005.847241
