NDLI: Accuracy and stability evaluation of the$ ^{85}$Rb atom gravimeter WAG-H5-1 at the 2017 International Comparison of Absolute Gravimeters

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Accuracy and stability evaluation of the$ ^{85}$Rb atom gravimeter WAG-H5-1 at the 2017 International Comparison of Absolute Gravimeters

Content Provider	Scilit
Author	Huang, Pan-Wei Tang, Biao Chen, Xi Zhong, Jia-Qi Xiong, Zong-Yuan Zhou, Lin Wang, Jin Zhan, Ming-Sheng
Copyright Year	2019
Description	Journal: Metrologia We report the realization and evaluation of the 85Rb mobile atom absolute gravimeter named WAG-H5-1. With a distinctive Raman laser implementation, two new systematic errors, ac Stark shift imbalance and Raman laser chirp, are found and evaluated. The robustness of the instrument was tested during 1200-km-long transportation for the 10th International Comparison of Absolute Gravimeters at Beijing in October 2017. We acquire the degree of equivalence of 3 µGal after the comparison. Its performance was further assessed by comparing with an absolute gravimeter (FG5X) in Wuhan. With high mobility and environmental adaptability, the gravimeter reaches a sensitivity of 30 µGal/√Hz, stability of 1 µGal@ 4000 s and accuracy within 10 µGal.
Related Links	https://iopscience.iop.org/article/10.1088/1681-7575/ab2f01/pdf
ISSN	00261394
e-ISSN	16817575
DOI	10.1088/1681-7575/ab2f01
Journal	Metrologia
Issue Number	4
Volume Number	56
Language	English
Publisher	IOP Publishing
Publisher Date	2019-07-03
Access Restriction	Open
Subject Keyword	Journal: Metrologia Absolute Gravimeter
Content Type	Text
Resource Type	Article
Subject	Engineering

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