Comparison of 3 absolute gravimeters based on different methods for the e-MASS project

Details Comparison of 3 absolute gravimeters based on different methods for the e-MASS project Comparison of 3 absolute gravimeters based on different methods for the e-MASS project

2010-08-17

arxiv.org/abs/1008.2884v2

IEEE Transactions on Instrumentation and Measurement 60, 2527 (2011)

Physics

Atomic Physics

Scientific paper

10.1109/TIM.2010.2099951

We report on the comparison between three absolute gravimeters that took place in April 2010 at Laboratoire National de M\'etrologie et d'Essais. The three instruments (FG5#209 from METAS, Switzerland, IMGC-02 from INRIM, Italy, and CAG from LNE-SYRTE, France) rely on different methods: optical and atomic interferometry. We discuss their differences as well as their similarities. We compare their measurements of the gravitational acceleration in 4 points of the same pillar, in the perspective of an absolute determination of g for a watt balance experiment

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