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Characterization and alignment of the flexure mechanism for the new Kibble balance at NIST



Lorenz Keck, Frank Seifert, David B. Newell, René Theska, Darine El Haddad


A quantum electro-mechanical metrology suite (QEMMS) is being built at the National Institute of Standards and Technology (NIST). As the first instrument in his class, the QEMMS combines all three, a programmable Josephson voltage system, a quantum Hall resistor, and a Kibble balance. It provides direct realizations for six units within the International System of Units (SI) – voltage, electric current, electric resistance, length, time, and mass – and thus has a great advantage over existing Kibble balances in terms of operation and calibration uncertainty. The goal is to measure masses in the range of 10g to 200g, targeting a total combined uncertainty of 2×10-8 on masses of 100g.
Proceedings Title
American Society for Precision Engineering
Conference Dates
October 10-14, 2022
Conference Location
Bellevue, WA, US


Keck, L. , Seifert, F. , Newell, D. , Theska, R. and El Haddad, D. (2022), Characterization and alignment of the flexure mechanism for the new Kibble balance at NIST, American Society for Precision Engineering, Bellevue, WA, US (Accessed July 13, 2024)


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Created September 30, 2022, Updated February 6, 2023