I-SCAD standoff chemical agent detector overview

Mirela O. Popa; Matthew T. Griffin

doi:10.1117/12.914700

4 May 2012 I-SCAD® standoff chemical agent detector overview

Mirela O. Popa, Matthew T. Griffin

Proceedings Volume 8358, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIII; 83581W (2012) https://doi.org/10.1117/12.914700
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

This paper presents a system-level description of the I-SCAD^® Standoff Chemical Agent Detector, a passive Fourier Transform InfraRed (FTIR) based remote sensing system, for detecting chemical vapor threats. The passive infrared detection system automatically searches the 7 to 14 micron region of the surrounding atmosphere for agent vapor clouds. It is capable of operating while on the move to accomplish reconnaissance, surveillance, and contamination avoidance missions. Additionally, the system is designed to meet the needs for application on air and sea as well as ground mobile and fixed site platforms. The lightweight, passive, and fully automatic detection system scans the surrounding atmosphere for chemical warfare agent vapors. It provides on-the-move, 360-deg coverage from a variety of tactical and reconnaissance platforms at distances up to 5 km. The core of the system is a rugged Michelson interferometer with a flexure spring bearing mechanism and bi-directional data acquisition capability. The modular system design facilitates interfacing to many platforms. A Reduced Field of View (RFOV) variant includes novel modifications to the scanner subcomponent assembly optical design that gives extended performance in detection range and detection probability without sacrificing existing radiometric sensitivity performance. This paper will deliver an overview of system.

Citation Download Citation

Mirela O. Popa and Matthew T. Griffin "I-SCAD® standoff chemical agent detector overview", Proc. SPIE 8358, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIII, 83581W (4 May 2012); https://doi.org/10.1117/12.914700

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KEYWORDS

Scanners

Sensors

FT-IR spectroscopy

Clouds

Mirrors

Scanning electron microscopy

Digital signal processing

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