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Proceedings Paper

Beam optimization for tomographic absorption spectroscopy with given probe locations
Author(s): Mingyuan Xin; Junling Song; Guangyu Wang; Wei Rao; Yanji Hong
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Paper Abstract

Tomographic absorption spectroscopy (TAS) is a promising combustion diagnosis technique. It can simultaneously provide 2D temperature and concentration of the flow field. Some engine combustors, such as scramjet combustors and internal-combustion engines, only allow limited optical access. Only a few beams (ca. 20-40) are available to measure the combustor and beam layout becomes a key factor affecting TAS accuracy. In engineering application, probes are embedded in the wall of the combustor for laser propagation. The probe size should be taken into account when designing beam layout. In this paper, we considered the probe locations into beam optimization. The math formulation of the problem and the solving algorithm (genetic simulated annealing algorithm) is developed.

Paper Details

Date Published: 29 March 2019
PDF: 8 pages
Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 110462W (29 March 2019); doi: 10.1117/12.2524499
Show Author Affiliations
Mingyuan Xin, Space Engineering Univ. (China)
Junling Song, Space Engineering Univ. (China)
Guangyu Wang, Space Engineering Univ. (China)
Wei Rao, Space Engineering Univ. (China)
Yanji Hong, Space Engineering Univ. (China)


Published in SPIE Proceedings Vol. 11046:
Fifth International Symposium on Laser Interaction with Matter
YiJun Zhao, Editor(s)

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