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Edwin R. Williams

National Institute of Standards and Technology

98

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A summary of the Planck constant measurements using a watt balance with a superconducting solenoid at NIST

2015 Metrologia
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The Planck constant, watt and vacuum balances, and an evolving Mise en pratique for the kilogram in North America

2012 CPEM | Conference on Precision Electromagnetic Measurements
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Towards a fixed value of the Planck constant: Reproducibility and an updated NIST-3 watt balance

2012 CPEM | Conference on Precision Electromagnetic Measurements
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In situ correction of abbe offset error in the watt balance experiment

2010 CPEM | Conference on Precision Electromagnetic Measurements
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Linking air and vacuum mass measurement by magnetic levitation

2009 Metrologia
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A magnetic levitation technique for the simultaneous comparison of mass artifacts in air and vacuum

2008 CPEM | Conference on Precision Electromagnetic Measurements
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Citations (2)
Toward the SI System Based on Fundamental Constants: Weighing the Electron

2007 IEEE Transactions on Instrumentation and Measurement
- Edwin R. Williams
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Uncertainty Improvements of the NIST Electronic Kilogram

2007 IEEE Transactions on Instrumentation and Measurement
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Redefinition of the kilogram, ampere, kelvin and mole: a proposed approach to implementing CIPM recommendation 1 (CI-2005)

2006 Metrologia
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The NIST project for the electronic realization of the kilogram

2005 IEEE Transactions on Instrumentation and Measurement
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