Calibration of a compact absolute atomic gravimeter  

作　　者：Hong-Tai Xie Bin Chen Jin-Bao Long Chun Xue Luo-Kan Chen Shuai Chen 谢宏泰;陈斌;龙金宝;薛春;陈泺侃;陈帅(Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China;Shanghai Branch,CAS Center for Excellence in Quantum Information and Quantum Physics,University of Science and Technology of China,Shanghai 201315,China;Shanghai Research Center for Quantum Sciences,Shanghai 201315,China;Shanghai Division,QuantumCTek Co.,Ltd.Shanghai 201315,China)

机构地区：[1]Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China [2]Shanghai Branch,CAS Center for Excellence in Quantum Information and Quantum Physics,University of Science and Technology of China,Shanghai 201315,China [3]Shanghai Research Center for Quantum Sciences,Shanghai 201315,China [4]Shanghai Division,QuantumCTek Co.,Ltd.Shanghai 201315,China

出　　处：《Chinese Physics B》2020年第9期84-91,共8页中国物理B（英文版）

基　　金：Project supported by the National Key R&D Program of China(Grant No.2016YFA0301601);the National Natural Science Foundation of China(Grant No.11674301);Anhui Initiative in Quantum Information Technologies,China(Grant No.AHY120000);Shanghai Municipal Science and Technology Major Project,China(Grant No.2019SHZDZX01).

摘　　要：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 35.5μGal/√Hz(1μGal=1×10-8 m/s2)and its long-term stability reaches 0.8μGal 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(2σ)of 15.3μGal.After compared with the reference g value given by the corner cube gravimeter NIM-3A,the atomic gravimeter USTC-AG02 reaches the degree of equivalence of 3.7μGal.

关 键 词：atom interferometry absolute gravimeter systematic errors 

分 类 号：P223.1[天文地球—大地测量学与测量工程]