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arXiv · 1406.5134

Stability comparison of two absolute gravimeters: optical versus atomic interferometers

Pierre Gillot·Olivier Francis·Arnaud Landragin·Franck Pereira Dos Santos·Sébastien Merlet
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Abstract

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 Universit\'e 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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Pierre Gillot, Olivier Francis, Arnaud Landragin, Franck Pereira Dos Santos, Sébastien Merlet. 2014-06-19. Stability comparison of two absolute gravimeters: optical versus atomic interferometers. https://doi.org/10.1088/0026-1394/51/5/l15

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