Gaseous effluent monitoring and identification using an imaging Fourier transform spectrometer

Michael R. Carter; Charles L. Bennett; David J. Fields; John A. Moreno Hernandez

doi:10.1117/12.171245

28 March 1994 Gaseous effluent monitoring and identification using an imaging Fourier transform spectrometer

Michael R. Carter, Charles L. Bennett, David J. Fields, John A. Moreno Hernandez

Proceedings Volume 2092, Substance Detection Systems; (1994) https://doi.org/10.1117/12.171245
Event: Substance Identification Technologies, 1993, Innsbruck, Austria

Abstract

We are developing an imaging Fourier transform spectrometer for chemical effluent monitoring. The system consists of a 2D IR imaging array in the focal plane of a Michelson interferometer. Individual images are coordinated with the positioning of a moving mirror in the Michelson interferometer. A 3D data cube with two spatial dimensions and one interferogram dimension is then Fourier transformed to produce a hyperspectral data cube with one spectral dimension and two spatial dimensions. The spectral range of the instrument is determined by the choice of optical components and the spectral range of the focal plane array. Measurements in the near UV, visible, near IR, and mid-IR ranges are possible with the existing instrument. Gaseous effluent monitoring and identification measurements will be primarily in the `fingerprint' region of the spectrum, ((lambda) equals 8 to 12 micrometers ). Initial measurements of effluent using this imaging interferometer in the mid-IR will be presented.

Citation Download Citation

Michael R. Carter, Charles L. Bennett, David J. Fields, and John A. Moreno Hernandez "Gaseous effluent monitoring and identification using an imaging Fourier transform spectrometer", Proc. SPIE 2092, Substance Detection Systems, (28 March 1994); https://doi.org/10.1117/12.171245

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