Continuous free fall acceleration determination for the LNE Watt balance

Author

Merlet, S. ; Gillot, Pierre ; Bing Cheng ; Farah, Tristan ; Landragin, Arnaud ; Dos Santos, Franck Pereira

Author_Institution

Obs. de Paris, LNE-SYRTE, UPMC, Paris, France

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

366

Lastpage

367

Abstract

Watt balance projects aim at linking the kilogram definition to the Planck constant. The weighting of the mass involved requires a determination of the acceleration g with an uncertainty better than 10^-8. We report on our studies and developments for the LNE Watt balance project and focus on continuous absolute g measurement obtained with an atomic and/or a superconducting gravimeter and a dedicated gravimetric site.

Keywords

acceleration measurement; balances; constants; gravimeters; measurement uncertainty; superconducting devices; weighing; LNE watt balance; Planck constant; atomic gravimeter; continuous free fall acceleration determination uncertainty; gravimetric site; kilogram; mass weighting; superconducting gravimeter; Acceleration; Atomic beams; Atomic measurements; Geophysical measurements; Gravity; Gravity measurement; Laboratories; Gravimetry; Watt balance; atomic interferometry; gravity mapping; gravity model; superconducting gravimeter;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898411

Filename

6898411