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File: /UL/b196504.pdf

Size: 4.9 MB

Accession Number:

ADB196504

Citation Status:

Active

Citation Classification:

Unclassified

SBI Site Holding Symbol:

BRL

Field(s) & Group(s):

170501 - INFRARED DETECTION AND DETECTORS

150603 - CHEMICAL, BIOLOGICAL AND RADIOLOGICAL WARFARE

200600 - OPTICS

Corporate Author:

OPTO-KNOWLEDGE SYSTEMS INC MANHATTAN BEACH CA

Unclassified Title:

Hazardous Substance Detection Using Longwave Infrared Imaging Spectrometer with Uncooled Optics. Phase 1.

Title Classification:

Unclassified

Descriptive Note:

Final rept. 19 Jul 94-19 Jan 95,

Personal Author(s):

Nahum, Gat

Report Date:

01 Feb 1995

Media Count:

68 Page(s)

Cost:

$7.00

Contract Number:

DASG60-94-C-0088

Report Number(s):

XA-USASSDC

Monitor Acronym:

XA

Monitor Series:

USASSDC

Report Classification:

Unclassified

Distribution Statement:

Distribution authorized to DoD and DoD contractors only; Proprietary Info.; 21 Feb 95. Other requests shall be referred to U.S. Army Space and Strategic Defense Command, Huntsville, AL 35807-3801.

Descriptors:

*INFRARED SPECTROMETERS,
INFRARED DETECTION, MILITARY OPERATIONS, OPTICAL PROPERTIES, CHEMICAL CONTAMINATION, AIR POLLUTION, MONITORING, BATTLEFIELDS, AIRBORNE, IDENTIFICATION, INFRARED IMAGES, REMOTE DETECTORS, BIOLOGICAL WARFARE, INFRARED RADIATION, FOCAL PLANES, LONG WAVELENGTHS, SPECTRUM ANALYSIS, FIELD CONDITIONS, THERMAL RADIATION, ELECTROMAGNETIC SPECTRA, HAZARDOUS MATERIALS, GAS DETECTORS, SPACEBORNE

Identifiers:

TIRIS(THERMAL INFRARED IMAGING SPECTROMETER)

Abstract:

The Thermal Infrared (TIR) portion of the electromagnetic spectrum is particular suitable for missions such as military target detection, remote sensing of battlefield chemical and biological weapons, airborne and spaceborne monitoring of earth resources, and the detection of hazardous organic pollutants in the atmosphere, soil, and water. A robust detection of such objects of interest may be achieved via a signature spectral analysis. The conventional design of an imaging spectrometer operating in the TIR would require the cooling of the optics to avoid the saturation of the focal plane array (FPA) with the thermal radiation emanating from the opto-mechanical structure. This makes the sensor too bulky and power consuming for practical field deployment. The object of this investigation was the development of a novel approach for the suppression of this TIR radiation, thus allowing the sensor to operate with uncooled optics. The effort focused on three areas: the fabrication of a TIR imaging spectrometer (TIRIS) sensor, the development of an application oriented toward the detection of gaseous pollutants that are classified under the 992 Clean Air Act Amendment as most Hazardous Air Pollutants (HAPs), and the identification of potential customers for a commercial service. (AN)

Abstract Classification:

Unclassified

Distribution Limitation(s):

16 - DOD AND THEIR CONTRACTORS

Source Serial:

F

Source Code:

424410

Document Location:

DTIC