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Title: Magneto-Radar Hidden Metal Detector

Abstract

A varying magnetic field excites slight vibrations in an object and a radar sensor detects the vibrations at a harmonic of the excitation frequency. The synergy of the magnetic excitation and radar detection provides increased detection range compared to conventional magnetic metal detectors. The radar rejects background clutter by responding only to reflecting objects that are vibrating at a harmonic excitation field, thereby significantly improving detection reliability. As an exemplary arrangement, an ultra-wideband micropower impulse radar (MIR) is capable of being employed to provide superior materials penetration while providing range information. The magneto-radar may be applied to pre-screening magnetic resonance imaging (MRI) patients, landmine detection and finding hidden treasures.

Inventors:
 [1]
  1. Las Vegas, NV
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
880095
Patent Number(s):
6914552
Application Number:
10/606388
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

McEwan, Thomas E. Magneto-Radar Hidden Metal Detector. United States: N. p., 2005. Web.
McEwan, Thomas E. Magneto-Radar Hidden Metal Detector. United States.
McEwan, Thomas E. Tue . "Magneto-Radar Hidden Metal Detector". United States. https://www.osti.gov/servlets/purl/880095.
@article{osti_880095,
title = {Magneto-Radar Hidden Metal Detector},
author = {McEwan, Thomas E},
abstractNote = {A varying magnetic field excites slight vibrations in an object and a radar sensor detects the vibrations at a harmonic of the excitation frequency. The synergy of the magnetic excitation and radar detection provides increased detection range compared to conventional magnetic metal detectors. The radar rejects background clutter by responding only to reflecting objects that are vibrating at a harmonic excitation field, thereby significantly improving detection reliability. As an exemplary arrangement, an ultra-wideband micropower impulse radar (MIR) is capable of being employed to provide superior materials penetration while providing range information. The magneto-radar may be applied to pre-screening magnetic resonance imaging (MRI) patients, landmine detection and finding hidden treasures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {7}
}

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Works referenced in this record:

Concealed weapon detection using microwave and millimeter wave sensors
conference, January 1998