Addressing Mechanical Design and Construction Issues for a Two Pan Knife-Edge Kibble Balance

James Berry, Jin Wan Chung, Stuart Davidson, Ian Robinson, Jeannie Urquhart
Abstract:
New concepts for the operation of the Kibble (watt) balance using common moving and weighing modes have recently been proposed. In order to fully evaluate the advantages and issues arising from such a configuration NPL is constructing a technology demonstrator based on a 5 kg mechanical two-pan knife-edge balance. This paper describes the design and manufacture of the mechanical components for this balance and highlights the issues that need to be addressed for the successful implementation of such an apparatus at the 1 ppm uncertainty level.
Keywords:
Kibble balance, mass, kilogram, redefinition, mechanical design
Download:
IMEKO-TC3-2017-043.pdf
DOI:
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