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Proceedings Paper

Two-dimensional imaging of gas temperature and concentration based on hyperspectral tomography
Author(s): Ming-yuan Xin; Xing Jin; Guang-yu Wang; Junling Song
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Paper Abstract

Two-dimensional imaging of gas temperature and concentration is realized by hyperspectral tomography, which has the characteristics of using multi-wavelengths absorption spectral information, so that the imaging could be accomplished in a small number of projections and viewing angles. A temperature and concentration model is established to simulate the combustion conditions and a total number of 10 near-infrared absorption spectral information of H2O is used. An improved simulated annealing algorithm by adjusting search step is performed the main search algorithm for the tomography. By adding random errors into the absorption area information, the stability of the algorithm is tested, and the results are compared with the reconstructions provided by algebraic reconstruction technique which takes advantage of 2 spectral information contents in imaging. The results show that the two methods perform equivalent in low-level noise environment, but at high-level, hyperspectral tomography turns out to be more stable.

Paper Details

Date Published: 19 October 2016
PDF: 10 pages
Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 1015510 (19 October 2016); doi: 10.1117/12.2245407
Show Author Affiliations
Ming-yuan Xin, Equipment Academy (China)
Xing Jin, Equipment Academy (China)
Guang-yu Wang, Equipment Academy (China)
Junling Song, Equipment Academy (China)

Published in SPIE Proceedings Vol. 10155:
Optical Measurement Technology and Instrumentation
Sen Han; JiuBin Tan, Editor(s)

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