Calibration of a compact absolute atomic gravimeter,Chinese Physics B

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Calibration of a compact absolute atomic gravimeter
Chinese Physics B ( IF 1.5 ) Pub Date : 2020-09-09 , DOI: 10.1088/1674-1056/aba27b
Hong-Tai Xie _{1,

2,

3} , Bin Chen _{1,

2,

3} , Jin-Bao Long _{1,

2,

3} , Chun Xue ₄ , Luo-Kan Chen _{1,

2,

3} , Shuai Chen _{1,

2,

3}

Affiliation

Compact atomic gravimeters are the potential next generation precision instruments for gravity survey from fundamental research to broad field applications. We report the calibration results of our home build compact absolute atomic gravimeter USTC-AG02 at Changping Campus, the National Institute of Metrology (NIM), China in January 2019. The sensitivity of the atomic gravimeter reaches ##IMG## [http://ej.iop.org/images/1674-1056/29/9/093701/cpb_29_9_093701_ieqn1.gif] {$35.5\,{\rm {\mu}} {\rm{Gal}}/\sqrt{{\rm{Hz}}}$} (1 μGal = 1 × 10 −8 m/s 2 ) and its long-term stability reaches 0.8 μGal for averaging over 4000 seconds. Considering the statistical uncertainty, the dominant instrumental systematic errors and environmental effects are evaluated and corrected within a total uncertainty (2 σ ) of 15.3 μGal. After compared with the reference g value given by the corner cube gravimeter NIM-3A, the atomic gravimeter USTC-AG02 reache...

更新日期：2020-09-11

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