8x8 element mosaic imaging FT-IR for passive standoff detection

Winthrop Wadsworth

doi:10.1117/12.682132

1 September 2006 8x8 element mosaic imaging FT-IR for passive standoff detection

Winthrop Wadsworth

Proceedings Volume 6302, Imaging Spectrometry XI; 630202 (2006) https://doi.org/10.1117/12.682132
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

A high-speed passive FT-IR imaging spectrometer has been designed and built. This sensor, based on the patented Turbo FT interferometer from D&P Instruments, was developed under contract with the U.S. Army Edgewood Chemical and Biological Center (ECBC) in Aberdeen, MD. The Turbo FT is a rotary high speed Fourier Transform Infra-Red (FT-IR) spectrometer which has been previously run at speeds up to 360 scans per second, at up to 1 cm-1 resolution. It has also operated in rugged environments, including helicopter and fixed wing platforms. This sensor was run at 8 cm-1 resolution and 30 scans per second with an 8X8 (64 element) LWIR (8-12 micron) mosaic detector. An on-board auto-calibrating blackbody accessory was built in, and automated chemical detection software was developed. These features allow in-flight calibration, and facilitate remote detection of target gas clouds. This paper will discuss the system specifications, preliminary sensor performance, and results from initial testing.

Citation Download Citation

Winthrop Wadsworth "8x8 element mosaic imaging FT-IR for passive standoff detection", Proc. SPIE 6302, Imaging Spectrometry XI, 630202 (1 September 2006); https://doi.org/10.1117/12.682132

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