Title:
DEVICE FOR DETECTING MUNITIONS, DRUGS, EXPLOSIVES ETC. USING MOLECULAR SPECTROSCOPY IN THE RADIO FREQUENCY RANGE
Document Type and Number:
WIPO Patent Application WO2001050114
Kind Code:
A3
Abstract:
The invention relates to a device for detecting munitions, drugs, explosives, hand grenades, mines and atomic substances using at least a high-frequency transmitter and receiver, a memory and a processor, or programmable module. According to the invention, a. The sample is exposed to radiation which is as monochromatic as possible and which changes its frequency over time, thus covering a frequency range b. During this exposure, the radiation which is absorbed by the sample and the surrounding material is measured progressively, whereby the effects of absorption resonance provide the characteristic spectra of a sample, c. Using a correlation or a distance determination the measured spectrum is compared with a previously determined molecular specific table which must have been stored previously in the memory for each material to be detected (drugs, munitions etc.), d. If the correlation value exceeds a predetermined threshold value, or if the distance lies below a previously defined threshold value, the sample is confirmed as one of the materials whose data is stored in the table.
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Inventors:
FISCHER JOERN (DE)
Application Number:
PCT/EP2000/013197
Publication Date:
July 25, 2002
Filing Date:
December 22, 2000
Export Citation:
Assignee:
SEBACUR AG (CH)
FISCHER JOERN (DE)
FISCHER JOERN (DE)
International Classes:
G01N22/00; (IPC1-7): G01V5/00; G01N22/00; G01V3/12
Domestic Patent References:
| WO1994018550A1 | 1994-08-18 |
Foreign References:
| US5508203A | 1996-04-16 | |||
| US5177445A | 1993-01-05 | |||
| GB2297377A | 1996-07-31 | |||
| US5057782A | 1991-10-15 | |||
| US5642393A | 1997-06-24 | |||
| US5365171A | 1994-11-15 | |||
| EP0911650A2 | 1999-04-28 |
Other References:
FALCONER DAVID G ET AL: "Detection of chemical contraband using spectroscopic microwave imaging", SUBSTANCE IDENTIFICATION ANALYTICS;INNSBRUCK, AUSTRIA OCT 4-8 1993, vol. 2093, 4 October 1993 (1993-10-04), Proc SPIE Int Soc Opt Eng;Proceedings of SPIE - The International Society for Optical Engineering 1994 Publ by Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, USA, pages 301 - 309, XP002195522
MATTHIAS OTTO: "Chemometrics", 1999, WILEY-VCH, WEINHEIM, ISBN: 3-527-29628-X, XP002195525
G.L.TRIGG ET AL. (EDT.): "Encyclopedia of applied physics, Vol.3", 1992, VCH PUBLISHERS, INC., NEW YORK, ISBN: 156081-062-9, XP002195526
PETERS L ET AL: "GROUND PENETRATING RADAR AS A SUBSURFACE ENVIRONMENTAL SENSING TOOL", PROCEEDINGS OF THE IEEE, IEEE. NEW YORK, US, vol. 82, no. 12, 1 December 1994 (1994-12-01), pages 1802 - 1822, XP000492722, ISSN: 0018-9219
HUSSEIN E M A ET AL: "Review of one-side approaches to radiographic imaging for detection of explosives and narcotics", RADIATION MEASUREMENTS, ELSEVIER SCIENCES PUBLISHERS, BARKING, GB, vol. 29, no. 6, December 1998 (1998-12-01), pages 581 - 591, XP004150304, ISSN: 1350-4487
MATTHIAS OTTO: "Chemometrics", 1999, WILEY-VCH, WEINHEIM, ISBN: 3-527-29628-X, XP002195525
G.L.TRIGG ET AL. (EDT.): "Encyclopedia of applied physics, Vol.3", 1992, VCH PUBLISHERS, INC., NEW YORK, ISBN: 156081-062-9, XP002195526
PETERS L ET AL: "GROUND PENETRATING RADAR AS A SUBSURFACE ENVIRONMENTAL SENSING TOOL", PROCEEDINGS OF THE IEEE, IEEE. NEW YORK, US, vol. 82, no. 12, 1 December 1994 (1994-12-01), pages 1802 - 1822, XP000492722, ISSN: 0018-9219
HUSSEIN E M A ET AL: "Review of one-side approaches to radiographic imaging for detection of explosives and narcotics", RADIATION MEASUREMENTS, ELSEVIER SCIENCES PUBLISHERS, BARKING, GB, vol. 29, no. 6, December 1998 (1998-12-01), pages 581 - 591, XP004150304, ISSN: 1350-4487
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