Micro-gravity investigations for the LNE watt balance project

Sébastien Merlet (1) , Alexander Kopaev , Michel Diament (2) , Gérard Geneves (3) , Arnaud Landragin (1) , Franck Pereira dos Santos (1)

1 SYRTE - Systèmes de Référence Temps Espace
2 IPGP - Institut de Physique du Globe de Paris
3 LNE - Laboratoire National de Métrologie et d’Essais

We report on a micro-gravity survey of the laboratories where the LNE's watt balance experiment is being conducted, including the characterization of the Scintrex CG-5 relative gravimeter used for this study. The results of the survey are compared with a model of the gravity field generated by the local mass distribution. The ultimate goal is to transfer an absolute measurement of g from one room to another with minimal uncertainty.

Domains: Sciences of the Universe [physics]

Sébastien Merlet, Alexander Kopaev, Michel Diament, Gérard Geneves, Arnaud Landragin, et al.. Micro-gravity investigations for the LNE watt balance project. Metrologia, 2008, 45, pp.265-274. ⟨10.1088/0026-1394/45/3/002⟩. ⟨insu-03603721⟩