Chinese Optics Letters, Volume. 17, Issue 1, 011204(2019)
Participation in the absolute gravity comparison with a compact cold atom gravimeter On the Cover
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Fig. 4. Tidal data measured by our CCAG. (a) is the experimental data and tidal model, where black scatters represent measured gravity value and the red line represents tidal model. (b) shows the residual between them.
Fig. 7. Atom gravimeter runs normally in the test site. The test sites are well-isolated from vibration, and the temperature and humidity in the test room are well controlled.
Fig. 8. The adjustment of the tilt before carrying out the absolute gravity measurement.
Fig. 9. The comparison between our results and the given reference value.
Table 1. The Budget for the Evaluation of Measurement Uncertainty
View tableView in ArticleTable 1. The Budget for the Evaluation of Measurement Uncertainty
Influence Parameters Corrections/μGal Uncertainties/μGal Frequency reference 2.0 Two-photon light shift 10.0 Laser frequency reproducibility 0.0 15.0 Laser frequency bandwidth 0.0 6.0 Direction of two reversed Raman lasers 0.0 1.0 Measurement height corrections 0.1 Total uncertainty 19.0
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Zhijie Fu, Qiyu Wang, Zhaoying Wang, Bin Wu, Bing Cheng, Qiang Lin, "Participation in the absolute gravity comparison with a compact cold atom gravimeter," Chin. Opt. Lett. 17, 011204 (2019)
Paper Information
Category: Instrumentation, measurement, and metrology
Received: Oct. 27, 2018
Accepted: Nov. 23, 2018
Posted: Dec. 3, 2018
Published Online: Jan. 17, 2019
The Author Email: Zhaoying Wang (zhaoyingwang@zju.edu.cn), Qiang Lin (qlin@zjut.edu.cn)
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