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Article Dans Une Revue Metrologia Année : 2014

Stability comparison of two absolute gravimeters: optical versus atomic interferometers

Résumé

We report the direct comparison between the stabilities of two mobile absolute gravimeters of different technology: the LNE-SYRTE Cold Atom Gravimeter and FG5X#216 of the Université du Luxembourg. These instruments rely on two different principles of operation: atomic and optical interferometry. The comparison took place in the Walferdange Underground Laboratory for Geodynamics in Luxembourg, at the beginning of the last International Comparison of Absolute Gravimeters, ICAG-2013. We analyse a 2h10 duration common measurement, and find that the CAG shows better immunity with respect to changes in the level of vibration noise, as well as a slightly better short term stability.
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Dates et versions

hal-01005331 , version 1 (19-06-2014)

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Pierre Gillot, Olivier Francis, Arnaud Landragin, Franck Pereira dos Santos, Sébastien Merlet. Stability comparison of two absolute gravimeters: optical versus atomic interferometers. Metrologia, 2014, 51 (5), pp.L15. ⟨10.1088/0026-1394/51/5/L15⟩. ⟨hal-01005331⟩
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