[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.
Disciplines :
Physique
Auteur, co-auteur :
Gillot, P.
FRANCIS, Olivier ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Landragin, A.
Santos, F. Pereira Dos
Merlet, S.
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Stability comparison of two absolute gravimeters: optical versus atomic interferometers
