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Publication Citation: Vacuum technology considerations for mass metrology

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Author(s): Patrick J. Abbott; Zeina J. Kubarych;
Title: Vacuum technology considerations for mass metrology
Published: July 01, 2011
Abstract: Vacuum weighing of mass artifacts eliminates the necessity of air buoyancy correction and its contribution to the measurement uncertainty. Vacuum weighing is also an important process in the experiments currently underway for the redefinition of the SI mass unit, the kilogram. Creating the optimum vacuum environment for mass metrology requires careful design and selection of construction materials, plumbing components, pumping, and gauging technologies. We review the vacuum technology required for mass metrology and suggest procedures and hardware for successful and reproducible operation.
Citation: Journal of Research of the National Institute of Standards and Technology
Volume: 116
Pages: pp. 689 - 702
Keywords: mass metrology; kilogram; vacuum; pressure; vacuum pump; pressure gauges
Research Areas: SI (Mass)
PDF version: PDF Document Click here to retrieve PDF version of paper (864KB)