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Spatial resolved temperature measurement based on absorption spectroscopy using a single tunable diode laser

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Abstract

A novel method based on wavelength-multiplexed line-of-sight absorption and profile fitting for non-uniform flow field measurement is reported. A wavelength scanning combing laser temperature and current modulation WMS scheme is used to implement the wavelength-multiplexed-profile fitting method. Second harmonic (2f) signal of eight H2O transitions features near 7,170 cm−1 are measured in one period using a single tunable diode laser. Spatial resolved temperature distribution upon a CH4/air premixed flat flame burner is obtained. The result validates the feasibility of strategy for non-uniform flow field diagnostics by means of WMS-2f TDLAS.

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Authors and Affiliations

  1. Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, 100190, Beijing, China

    Xilong Yu, Fei Li, Lihong Chen & Xinyu Zhang

Authors
  1. Xilong Yu
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  2. Fei Li
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  3. Lihong Chen
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  4. Xinyu Zhang
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Corresponding author

Correspondence to Xilong Yu.

Additional information

The project was supported by the National Natural Science Foundation of China (10772188).

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Yu, X., Li, F., Chen, L. et al. Spatial resolved temperature measurement based on absorption spectroscopy using a single tunable diode laser. Acta Mech Sin 26, 147–149 (2010). https://doi.org/10.1007/s10409-009-0296-9

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  • DOI: https://doi.org/10.1007/s10409-009-0296-9

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