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Annalen der Physik, ISSN 0003-3804, 07/2013, Volume 525, Issue 7, pp. 484 - 492
The fine structure constant α has a particular status in physics. Its precise determination is required to test the quantum electrodynamics (QED) theory. The... 
Quantum electrodynamics test | Bloch oscillations | atomic mass unit | electron moment anomaly | atom interferometry | Fine structure constant | Fine structure | Mathematical analysis | Quantum electrodynamics | Recoil | Photons | Plancks constant | Rubidium | Physical properties
Journal Article
IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, 06/2019, Volume 68, Issue 6, pp. 2172 - 2175
The ultimate goal of redefining the SI unit of mass in terms of a fixed value of the Planck constant may be achieved by means of Kibble balance principle,... 
Coils | Electric measuring instruments | Electrical measurement | Electric potential | Uncertainty | Parameters | Misalignment | Plancks constant | Eddy currents | Optimization
Journal Article
IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, 06/2019, Volume 68, Issue 6, pp. 1913 - 1920
For a determination of the Avogadro constant by the X-ray crystal density method, the volume of a Si sphere manufactured from a Si crystal isotopically... 
Temperature measurement | Optical interferometry | Uncertainty | optical interferometer | Volume measurement | diameter measurement | Crystals | silicon crystal | Optical variables measurement | Silicon | Avogadro constant | Photoelectrons | Plancks constant | Uncertainty analysis | Surface layers | X ray spectroscopy | Ellipsometry
Journal Article
Metrologia, ISSN 0026-1394, 2014, Volume 51, Issue 2, pp. S5 - S14
We have measured Planck's constant and have obtained a value of 6.626 070 34( 12) x 10(-34) J s. To our knowledge this measurement of h has the lowest... 
Watt balance | Kilogram | Planck constant | REDEFINITION | Planck's constant | INSTRUMENTS & INSTRUMENTATION | PHYSICS, APPLIED | kilogram | watt balance
Journal Article
Journal of Physical and Chemical Reference Data, ISSN 0047-2689, 2015, Volume 44, Issue 3, p. 31101
We present a brief overview of the presentations at the workshop on the determination of the fundamental constants (Eltville, 2015) and the contributions to... 
Natural units | Fundamental constants | Precision physics | International system of units | natural units | PHYSICS, MULTIDISCIPLINARY | CHEMISTRY, PHYSICAL | fundamental constants | International System of Units | ATOMIC MASS | CHEMISTRY, MULTIDISCIPLINARY | precision physics | WATT BALANCE | NIST | PLANCK CONSTANT | CODATA RECOMMENDED VALUES | PHYSICAL CONSTANTS
Journal Article
Metrologia, ISSN 0026-1394, 06/2017, Volume 54, Issue 4, pp. 468 - 480
A determination of the Planck constant h using the LNE Kibble balance in air was carried out in the spring of 2017. Substantial improvements since 2014,... 
SI redefinition | kibble balance | watt balance | kilogramme | Planck constant | KILOGRAM | INSTRUMENTS & INSTRUMENTATION | PHYSICS, APPLIED | UNIT | FIELD | REDEFINITION | Physics | Astrophysics
Journal Article
Metrologia, ISSN 0026-1394, 09/2017, Volume 54, Issue 5, pp. 763 - 774
The National Institute of Metrology (NIM, China) proposed a joule balance method to measure the Planck constant in 2006, and built the first prototype NIM-1 to... 
redefinition | Planck's constant | metrology | joule balance | kilogram | INSTRUMENTS & INSTRUMENTATION | PHYSICS, APPLIED
Journal Article
Metrologia, ISSN 0026-1394, 06/2009, Volume 46, Issue 3, pp. 298 - 304
The method for realization of the kilogram using 'superconducting magnetic levitation' was re-evaluated at MIKES. The realization of the kilogram based on the... 
WATT BALANCE | LOSSES | KILOGRAM | INSTRUMENTS & INSTRUMENTATION | PHYSICS, APPLIED | PLANCKS-CONSTANT | FLUX QUANTUM | AMPERE | UNITS | MOLE
Journal Article
Metrologia, ISSN 0026-1394, 04/2015, Volume 52, Issue 2, pp. 433 - 433
After separate developments of the different elements with continuous characterizations and improvements, the LNE watt balance has been assembled. This paper... 
Uncertainty | Balancing | Adjustment | Symbols | Metrology | Plancks constant | Standards
Journal Article
Metrologia, ISSN 0026-1394, 02/2016, Volume 53, Issue 1, pp. 86 - 86
The joule balance experiment has been carried out at the National Institute of Metrology, China (NIM) since 2007. By the end of 2013 the first generation of... 
Linkages | Uncertainty | Balancing | Dynamics | Coiling | Nonlinearity | Permanent magnets | Plancks constant
Journal Article
IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, 06/2019, Volume 68, Issue 6, pp. 2172 - 2175
The ultimate goal of redefining the SI unit of mass in terms of a fixed value of the Planck constant may be achieved by means of Kibble balance principle,... 
Temperature measurement | Voltage measurement | Uncertainty | SI units | watt balance | Planck constant | Magnetic noise | Kibble balance | Magnetic circuits | Optimization | Magnetic shielding | INSTRUMENTS & INSTRUMENTATION | optimization | ENGINEERING, ELECTRICAL & ELECTRONIC
Journal Article
Jiliang Xuebao/Acta Metrologica Sinica, ISSN 1000-1158, 05/2018, Volume 39, Issue 3, pp. 377 - 380
Journal Article
Metrologia, ISSN 0026-1394, 04/2015, Volume 52, Issue 2, pp. 433 - 443
After separate developments of the different elements with continuous characterizations and improvements, the LNE watt balance has been assembled. This paper... 
Watt balance | Planck's constant | Kilogram | METROLOGY | INSTRUMENTS & INSTRUMENTATION | PHYSICS, APPLIED | watt balance | MAGNETIC-CIRCUIT | FIELD | REDEFINITION | AIR | kilogram | CODATA RECOMMENDED VALUES | FUNDAMENTAL PHYSICAL CONSTANTS
Journal Article
Metrologia, ISSN 0026-1394, 01/2016, Volume 53, Issue 1, pp. 86 - 97
The joule balance experiment has been carried out at the National Institute of Metrology, China (NIM) since 2007. By the end of 2013 the first generation of... 
permanent magnet | the Planck constant | joule balance | magnetic flux linkage difference | WATT BALANCE | KILOGRAM | DESIGN | INSTRUMENTS & INSTRUMENTATION | PHYSICS, APPLIED
Journal Article
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, ISSN 0018-9456, 06/2017, Volume 66, Issue 6, pp. 1275 - 1282
The Avogadro constant, N-A, is the physical constant that connects microscopic and macroscopic quantities, and is indispensable especially in the field of... 
KILOGRAM | INSTRUMENTS & INSTRUMENTATION | mass measurement | Planck constant | SILICON | MOLAR-MASS | CRYSTAL | Avogadro constant | silicon sphere | ENGINEERING, ELECTRICAL & ELECTRONIC
Journal Article
IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, 06/2017, Volume 66, Issue 6, pp. 1275 - 1282
The Avogadro constant, N_{\mathbf {A}} , is the physical constant that connects microscopic and macroscopic quantities, and is indispensable especially in the... 
Atomic measurements | Uncertainty | mass measurement | Planck constant | Buoyancy | Crystals | Silicon | Pollution measurement | Avogadro constant | silicon sphere | Standards | Mass measurement | Silicon sphere | Enrichment | Organic chemistry | Atomic properties | Spheres | Plancks constant | Atomic structure | Water vapor | Physical properties
Journal Article
Applied Physics B, ISSN 0946-2171, 9/2006, Volume 84, Issue 4, pp. 633 - 642
We report on progress towards a measurement of the fine structure constant α to an accuracy of 5×10-10 or better by measuring the ratio h/mCs of the Planck... 
ATOMIC INTERFEROMETRY | PHYSICS, APPLIED | LASERS | PRECISION-MEASUREMENT | OHM | CALCULABLE CAPACITOR | MAGNETIC-MOMENT | SPECTRAL-LINES | OPTICS | BRAGG SCATTERING | QUANTUM-THEORY | QUANTIZED HALL RESISTANCE | Fine structure | Conjugates | Beams (radiation) | Diffraction | Lasers | Noise | Photons | Plancks constant
Journal Article
Physics Education, ISSN 0031-9120, 09/2013, Volume 48, Issue 5, pp. 601 - 606
A watt balance is an electromechanical device that allows a mass to be determined in terms of measurable electrical and mechanical quantities, themselves... 
Measurement Equipment | College Science | Science Instruction | Energy | Secondary School Science | Scientific Principles | Magnets | Physics | Science Laboratories | Laboratory Equipment | Electromechanical devices | Constants | Balancing | Plancks constant | Devices | Education
Journal Article
IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, 06/2015, Volume 64, Issue 6, pp. 1663 - 1669
A new watt balance is being constructed at the National Institute of Standards and Technology in preparation for the redefinition of the International System... 
Uncertainty | Planck's constant | Laboratories | watt balance | International System of Units (SI) | Position measurement | Concrete | Fundamental constants | Acceleration | Slabs | Gravity | gravity | INSTRUMENTS & INSTRUMENTATION | ENGINEERING, ELECTRICAL & ELECTRONIC | Physics - Instrumentation and Detectors
Journal Article
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