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Chinese Journal of Lasers, Volume. 49, Issue 19, 1904005(2022)

Temperature Gradient Measurement Method for Alkali Metal Cell Based on Spectral Absorption

Jiasen Ruan1,2, Lihong Duan1,2、*, and Wei Quan1,2
Author Affiliations
  • 1School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China
  • 2Hangzhou Innovation Institute (Yuhang), Beihang University, Hangzhou 310023, Zhejiang, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (18)
    Cited By (1)
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    Figures & Tables(8)
    Iout/Iin versus air cell temperature

    Fig. 1. Iout/Iin versus air cell temperature

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    Iout/Iin versus air cell temperature under different linearly polarized light wavelengths

    Fig. 2. Iout/Iin versus air cell temperature under different linearly polarized light wavelengths

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    Three dimensional drawings of heating structure. (a) Oven; (b) air cell

    Fig. 3. Three dimensional drawings of heating structure. (a) Oven; (b) air cell

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    Temperature cloud diagrams of heating structure. (a) Temperature cloud diagram of oven and cell; (b) temperature cloud diagram of section of oven and cell

    Fig. 4. Temperature cloud diagrams of heating structure. (a) Temperature cloud diagram of oven and cell; (b) temperature cloud diagram of section of oven and cell

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    Schematic of experimental devices

    Fig. 5. Schematic of experimental devices

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    Simulated and measured Iout/Iin at center of air cell under different temperatures

    Fig. 6. Simulated and measured Iout/Iin at center of air cell under different temperatures

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    Temperature distribution in x-axis direction of air cell

    Fig. 7. Temperature distribution in x-axis direction of air cell

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    • Table 1. Simulated temperatures for air cell heating structure at different detection points

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      Table 1. Simulated temperatures for air cell heating structure at different detection points

      Position of detection point /mmSimulated result /℃Average value /℃
      1234
      －1.0176.59176.61176.64176.45176.57
      －0.5176.99177.08177.05176.9177.01
      0177.34177.4177.42177.35177.38
      0.5177.7177.76177.73177.7177.72
      1.0177.97178.05178.04178.03178.02
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    Jiasen Ruan, Lihong Duan, Wei Quan. Temperature Gradient Measurement Method for Alkali Metal Cell Based on Spectral Absorption[J]. Chinese Journal of Lasers, 2022, 49(19): 1904005

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    Paper Information

    Category: Measurement and metrology

    Received: May. 23, 2022

    Accepted: Aug. 2, 2022

    Published Online: Sep. 20, 2022

    The Author Email: Duan Lihong (duanlihong@buaa.edu.cn)

    DOI:10.3788/CJL202249.1904005

    Topics

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