Article1992

Measurements of the magnetic flux quantum, Planck constant, and elementary charge at VNIIM

24 citations0/0 files storedIEEE Transactions on Instrumentation and Measurement

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Scientific Measurement and Uncertainty Evaluation Advanced Electrical Measurement Techniques Mechanical and Optical Resonators

Abstract

Tests of an electromechanical system developed for measurements of the magnetic flux quantum, Planck's constant, and the elementary charge in SI units by a procedure based on a superconducting levitated mass have shown a precision of several parts in 10/sup 6/. When a special cryogenic measuring device is introduced into the system, the precision will increase to several parts in 10/sup 7/. Further improvements in the measuring setup should result in an uncertainty below 1 part in 10/sup 7/.>

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1977Can superconductivity contribute to the determination of the absolute ampere?

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2004Towards a new kilogram definition based on a fundamental constant

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