Title :
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
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;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4799-5205-2
DOI :
10.1109/CPEM.2014.6898411
