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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 10 — May. 11, 2009
  • pp: 8602–8613

Tomographic imaging of temperature and chemical species based on hyperspectral absorption spectroscopy

Lin Ma, Weiwei Cai, Andrew W. Caswell, Thilo Kraetschmer, Scott T. Sanders, Sukesh Roy, and James R. Gord  »View Author Affiliations

Optics Express, Vol. 17, Issue 10, pp. 8602-8613 (2009)

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A novel technique has been developed to obtain simultaneous tomographic images of temperature and species concentration based on hyperspectral absorption spectroscopy. The hyperspectral information enables several key advantages when compared to traditional tomography techniques based on limited spectral information. These advantages include a significant reduction in the number of required projection measurements, and an enhanced insensitivity to measurements/inversion uncertainties. These advantages greatly facilitate the practical implementation and application of the tomography technique. This paper reports the development of the technique, and the experimental demonstration of a prototype sensor in a near-adiabatic, atmospheric-pressure laboratory Hencken burner. The spatial and temporal resolution enabled by this new sensing technique is expected to resolve several key issues in practical combustion devices.

© 2009 Optical Society of America

OCIS Codes
(100.6950) Image processing : Tomographic image processing
(280.1740) Remote sensing and sensors : Combustion diagnostics

ToC Category:
Image Processing

Original Manuscript: March 12, 2009
Revised Manuscript: April 29, 2009
Manuscript Accepted: May 3, 2009
Published: May 6, 2009

Lin Ma, Weiwei Cai, Andrew W. Caswell, Thilo Kraetschmer, Scott T. Sanders, Sukesh Roy, and James R. Gord, "Tomographic imaging of temperature and chemical species based on hyperspectral absorption spectroscopy," Opt. Express 17, 8602-8613 (2009)

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