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Chinese Journal of Lasers, Volume. 50, Issue 19, 1911004(2023)

Temperature‑Measurement Method Based on Boltzmann Diagram for Scramjet Engine

An Huang1,2, Yanhui Zhao3, Shunhua Yang3, Huihui Xia1, Hao Deng1, Jun Ruan1, Jiayi Hu1, Ai Suman1, Zhenyu Xu1、*, and Ruifeng Kan1、**
Author Affiliations
  • 1Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, China
  • 2Science Island Branch, Graduate School of University of Science and Technology of China, Hefei 230026, Anhui, China
  • 3Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, Sichuan, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (14)
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    References (18)
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    Figures & Tables(14)
    Absorbance signals simulated by the selected absorption line

    Fig. 1. Absorbance signals simulated by the selected absorption line

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    High-temperature furnace measurement solution

    Fig. 2. High-temperature furnace measurement solution

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    Absorption signal of water vapor in the high-temperature furnace and interference signal of the etalon

    Fig. 3. Absorption signal of water vapor in the high-temperature furnace and interference signal of the etalon

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    Fitting results of temperature measurement by Boltzmann diagram method

    Fig. 4. Fitting results of temperature measurement by Boltzmann diagram method

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    Multi-wavelength combination temperature measurement results

    Fig. 5. Multi-wavelength combination temperature measurement results

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    Comparison of relative errors in multi-wavelength measurements

    Fig. 6. Comparison of relative errors in multi-wavelength measurements

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    Direct-coupled pulsed combustion wind tunnel equipment

    Fig. 7. Direct-coupled pulsed combustion wind tunnel equipment

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    Measurement scheme for the expansion section of the combustion chamber

    Fig. 8. Measurement scheme for the expansion section of the combustion chamber

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    Absorption signal of the expansion segment

    Fig. 9. Absorption signal of the expansion segment

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    T0–T10 temperature measurement results

    Fig. 10. T0–T10 temperature measurement results

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    T11–T15 temperature measurement results

    Fig. 11. T11–T15 temperature measurement results

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    Comparison of two repeated tests under condition A and condition B. (a) Condition A; (b) condition B

    Fig. 12. Comparison of two repeated tests under condition A and condition B. (a) Condition A; (b) condition B

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    • Table 1. Selected spectral line parameters

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      Table 1. Selected spectral line parameters

      ν /cm-1E″ /cm-1

      S0@HITEMP2010 /

      （cm-2∙atm-1）

      		Uncertainty for S0 @HITEMP2010

      Measured S0 /

      （cm-2∙atm-1）

      		Uncertainty for measured S0
      7467.772551.481.27×10-55%‒10%1.09×10-5<5%
      7444.352，7444.3691774.75，1806.675.4×10-4，5.76×10-410%‒20%1.10×10-3<5%
      7179.751216.195.97×10-310%‒20%5.81×10-3<5%
      7185.5971045.061.98×10-210%‒20%1.91×10-2<5%
      6807.833319.456.17×10-710%‒20%6.03×10-7<5%

    • Table 2. Spectral line combination schemes

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      Table 2. Spectral line combination schemes

      NumberWavelength combinationNumberWavelength combination
      1ν1+ν214ν1+ν3+ν4
      2ν1+ν315ν1+ν3+ν5
      3ν1+ν416ν1+ν4+ν5
      4ν1+ν517ν2+ν3+ν4
      5ν2+ν318ν2+ν3+ν5
      6ν2+ν419ν2+ν4+ν5
      7ν2+ν520ν3+ν4+ν5
      8ν3+ν421ν1+ν2+ν3+ν4
      9ν3+ν522ν1+ν2+ν3+ν5
      10ν4+ν523ν1+ν3+ν4+ν5
      11ν1+ν2+ν324ν2+ν3+ν4+ν5
      12ν1+ν2+ν425ν1+ν2+ν3+ν4+ν5
      13ν1+ν2+ν5
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    An Huang, Yanhui Zhao, Shunhua Yang, Huihui Xia, Hao Deng, Jun Ruan, Jiayi Hu, Ai Suman, Zhenyu Xu, Ruifeng Kan. Temperature‑Measurement Method Based on Boltzmann Diagram for Scramjet Engine[J]. Chinese Journal of Lasers, 2023, 50(19): 1911004

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    Paper Information

    Category: spectroscopy

    Received: Oct. 18, 2022

    Accepted: Nov. 30, 2022

    Published Online: Sep. 25, 2023

    The Author Email: Xu Zhenyu (zyxu@aiofm.ac.cn), Kan Ruifeng (kanruifeng@aiofm.ac.cn)

    DOI:10.3788/CJL221338

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology