DocumentCode
2934173
Title
The next generation of the NIST watt balance
Author
Newell, D.B. ; Steiner, R.L. ; Williams, E.R. ; Picard, A.
Author_Institution
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
fYear
1998
fDate
6-10 July 1998
Firstpage
108
Lastpage
109
Abstract
Reduction in the total uncertainty of the NIST watt balance is limited by the present configuration of the experiment. Most of the major uncertainty components arise from the fact that the experiment is performed in air. To reduce the contribution of these components, a vacuum system for the NIST watt balance has been constructed. The vacuum system and other future modifications to the NIST watt balance are discussed.
Keywords
balances; mass measurement; measurement standards; measurement uncertainty; vacuum apparatus; 1 kg; NIST watt balance; artifact kilogram; mass standard; next generation balance; total uncertainty reduction; vacuum system; Coils; Electric variables measurement; Interferometers; NIST; Optical refraction; Pollution measurement; Pressure measurement; Refractive index; Uncertainty; Vacuum systems;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location
Washington, DC, USA
Print_ISBN
0-7803-5018-9
Type
conf
DOI
10.1109/CPEM.1998.699806
Filename
699806
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