Developing a practical means of disseminating the new kilogram
Public support
Provider
Ministry of Education, Youth and Sports
Programme
—
Call for proposals
FP6-2005-Energy-4
Main participants
Český metrologický institut
Contest type
RP - Co-financing of EC programme
Contract ID
MSMT-45248/2013-7
Alternative language
Project name in Czech
Developing a practical means of disseminating the new kilogram
Annotation in Czech
The unit of mass, the kilogram, is the last of the seven base units of the International System of Units (SI) to be defined in terms of a material artefact rather than by relation to an invariant of nature. Progress is being made towards a redefinition of the kilogram in terms of the Planck constant (h), realised via the watt balance and Avogadro experiments1,2. The International Committee for Weights and Measures (CIPM) has targeted the 2014 meeting of the General Conference on Weights and Measures (CGPM) for the ratification of the redefinition and in order for this to be feasible, a practical means of linking the new definition to the current mass scale must be in place. The work outlined in this JRP will develop the procedures necessary to providethis link and to ensure the continuity of the worldwide mass scale. Without this work the uncertainty with which the Planck constant can be fixed will be compromised and furthermore the practical implementation of a redefined kilogram will not be possible.
Scientific branches
R&D category
ZV - Basic research
CEP classification - main branch
BA - General mathematics
CEP - secondary branch
—
CEP - another secondary branch
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OECD FORD - equivalent branches <br>(according to the <a href="http://www.vyzkum.cz/storage/att/E6EF7938F0E854BAE520AC119FB22E8D/Prevodnik_oboru_Frascati.pdf">converter</a>)
10101 - Pure mathematics
Completed project evaluation
Provider evaluation
U - Uspěl podle zadání (s publikovanými či patentovanými výsledky atd.)
Project results evaluation
Laboratory of mass performed measurements of changes on the surface of weights and dependence of mass in respect to time of exposure to vacuum. Laboratory took part in the pilot comparison of weights in vacuum. This contribution was needed for the succesful completition of the project. The project itself largely contributed to the mass dissemination issues after the redefinition of the kilogram.
Solution timeline
Realization period - beginning
Jan 1, 2013
Realization period - end
May 31, 2015
Project status
U - Finished project
Latest support payment
Feb 20, 2015
Data delivery to CEP
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data delivery code
CEP16-MSM-7A-U/01:1
Data delivery date
Oct 11, 2017
Finance
Total approved costs
1,517 thou. CZK
Public financial support
846 thou. CZK
Other public sources
0 thou. CZK
Non public and foreign sources
671 thou. CZK