ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Simulation studies of multi-line line-of-sight tunable-diode-laserabsorption spectroscopy performance in measuring temperature probability distribution function |
Zhang Guang-Le (张光乐), Liu Jian-Guo (刘建国), Kan Rui-Feng (阚瑞峰), Xu Zhen-Yu (许振宇) |
Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics andFine Mechanics, Chinese Academy of Sciences, Hefei 230031, China |
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Abstract Line-of-sight tunable-diode-laser absorption spectroscopy (LOS-TDLAS) with multiple absorption lines is introduced for non-uniform temperature measurement. Temperature binning method combined with Gauss–Seidel iteration method is used to measure temperature probability distribution function (PDF) along the line-of-sight (LOS). Through 100 simulated measurements, the variation of measurement accuracy is investigated with the number of absorption lines, the number of temperature bins and the magnitude of temperature non-uniformity. A field model with 2-T temperature distribution and 15 well-selected absorption lines are used for the simulation study. The Gauss–Seidel iteration method is discussed for its reliability. The investigation result about the variation of measurement accuracy with the number of temperature bins is different from the previous research results.
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Received: 29 March 2014
Revised: 30 May 2014
Accepted manuscript online:
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PACS:
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42.62.Fi
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(Laser spectroscopy)
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02.70.-c
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(Computational techniques; simulations)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61108034) and the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 61205151). |
Corresponding Authors:
Liu Jian-Guo
E-mail: jgliu@aiofm.ac.cn
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Cite this article:
Zhang Guang-Le (张光乐), Liu Jian-Guo (刘建国), Kan Rui-Feng (阚瑞峰), Xu Zhen-Yu (许振宇) Simulation studies of multi-line line-of-sight tunable-diode-laserabsorption spectroscopy performance in measuring temperature probability distribution function 2014 Chin. Phys. B 23 124207
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