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    Journals >Acta Physica Sinica >Volume 69 >Issue 15 >Page 150601-1 > Article
    • Acta Physica Sinica
    • Vol. 69, Issue 15, 150601-1 (2020)
    Vacuum metrology based on refractive index of gas
    Yu-Rong Xu1, Yang-Yang Liu1, Jin Wang1,2,*, Yu Sun1,2..., Zhen-Hua Xi3, De-Tian Li3 and Shui-Ming Hu1,2|Show fewer author(s)
    Author Affiliations
  • 1Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China
  • 2CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
  • 3Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics, Lanzhou 730000, China
    • show less
    DOI: 10.7498/aps.69.20200706 Cite this Article
    Yu-Rong Xu, Yang-Yang Liu, Jin Wang, Yu Sun, Zhen-Hua Xi, De-Tian Li, Shui-Ming Hu. Vacuum metrology based on refractive index of gas[J]. Acta Physica Sinica, 2020, 69(15): 150601-1 Copy Citation Text show less
    Experimental setup (LO, local oscillator; EOM, electro-optic modulator; IO, isolator).
    Fig. 1. Experimental setup (LO, local oscillator; EOM, electro-optic modulator; IO, isolator).
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    (a) Temperature readout with time and (b) its Allan deviation.
    Fig. 2. (a) Temperature readout with time and (b) its Allan deviation.
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    (a) Cavity diagram; (b) temperature distribution inside the sample cell.
    Fig. 3. (a) Cavity diagram; (b) temperature distribution inside the sample cell.
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    Deviation between calculated and measured pressures.
    Fig. 4. Deviation between calculated and measured pressures.
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    参数不确定度u(p)/ppm ΔP/mPa
    注: #表示A类不确定度, 其他为B类不确定度; *表示该项不确定度贡献将随压力增大而增大.
    温度T67
    频率ν#0.01
    氩气纯度5
    压缩滞后0.1
    ${A_\varepsilon }$4.0
    ${B_\varepsilon }$≤ 0.3*
    ${A_\mu }$0.05
    $B(T)$≤ 10*
    体积模量K27
    漏气率6
    ULE热膨胀0.6
    总计736
    Table 1.

    Uncertainty budget of determined argon pressures within 1 atm.

    各参数对氩气在1个大气压下压力测量的相对不确定度贡献

    Abstract
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    Figures&Tables (5)
    Equations (12)
    References (21)
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    Yu-Rong Xu, Yang-Yang Liu, Jin Wang, Yu Sun, Zhen-Hua Xi, De-Tian Li, Shui-Ming Hu. Vacuum metrology based on refractive index of gas[J]. Acta Physica Sinica, 2020, 69(15): 150601-1
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