Stability comparison of two absolute gravimeters: optical versus atomic interferometers

By Pierre Gillot, Olivier Francis, A. Landragin, Franck Pereira Dos Santos, S. Merlet. 2014

140 citations recorded by the source corpus.

We report the direct comparison between the stabilities of two mobile absolute gravimeters of different technology: the LNE-SYRTE Cold Atom Gravimeter (CAG) 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.

Subfields: Atomic and Molecular Physics, and Optics, Oceanography, Statistics and Probability

View Paper: https://www.semanticscholar.org/paper/e1d6471606e969bc5bbb81b9dc4958762d99e751

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In Oceanography

1. Olivier Francis
2. Olivier de Viron
3. Arnaud Watlet
4. C. Caudron
5. Bruno Meurers

Citations in the corpus

• Geophysics From Terrestrial Time‐Variable Gravity Measurements (2017, background): “Results from laboratory tests show that the atom gravimeters provide an accuracy and precision similar to classical ballistic gravimeters (Freier et al., 2016; Gillot et al., 2014).”