Reference : Stability comparison of two absolute gravimeters: optical versus atomic interferometers
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Stability comparison of two absolute gravimeters: optical versus atomic interferometers
Gillot, P. [> >]
Francis, Olivier mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit]
Landragin, A. [> >]
Santos, F. Pereira Dos [> >]
Merlet, S. [> >]
[en] 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.
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