Zhijie Fu, Qiyu Wang, Zhaoying Wang, Bin Wu, Bing Cheng, Qiang Lin. Participation in the absolute gravity comparison with a compact cold atom gravimeter[J]. Chinese Optics Letters, 2019, 17(1): 011204
- Chinese Optics Letters
- Vol. 17, Issue 1, 011204 (2019)
Fig. 1. Schematic diagram of the gravity sensor.
Fig. 2. Picture of the CCAG in the test field.
Fig. 3. Atomic interference fringe for T = 70 ms
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. 5. Allan deviation of the residual.
Fig. 6. Truck for the transportation of our CCAG.
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.
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Table 1. The Budget for the Evaluation of Measurement Uncertainty
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