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Search Publications by: Richard L. Steiner ()

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Displaying 1 - 25 of 100

A NIST Testbed for Examining the Accuracy of Smart Meters under High Harmonic Waveform Loads

May 7, 2019
Author(s)
Richard L. Steiner, Michael P. Farrell, Shannon Edwards, Thomas L. Nelson, Joni Ford, Sumaiyah Sarwat
Household and industrial electrical energy measurements are advancing into a Smart Grid stage, using solid-state watthour meters with communication capability, called Smart meters. As electrical products become heavily based on solid-state designs, such as

Milligram mass metrology using an electrostatic force balance

September 28, 2016
Author(s)
Gordon A. Shaw, Julian Stirling, John A. Kramar, Alexander D. Moses, Patrick J. Abbott, Richard L. Steiner, Andrew D. Koffman, Jon R. Pratt, Zeina J. Kubarych
Although mass is typically defined within the International System of Units (SI) at the Kilogram level, the pending redefinition of the SI provides an opportunity to realize mass at any scale using electrical metrology. We propose the use of an

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

February 5, 2015
Author(s)
Stephan Schlamminger, Richard L. Steiner, Darine El Haddad, David B. Newell, Frank C. Seifert, Leon S. Chao, Ruimin Liu, Edwin R. Williams
Researchers at the National Institute of Standards and Technology have been using a watt balance, NIST-3, to measure the Planck constant h for over ten years. Two recently published values disagree by more than one standard deviation. The motivation for

Determination of the Planck constant at the National Institute of Standards and Technology

July 1, 2014
Author(s)
Stephan Schlamminger, Darine El Haddad, Frank C. Seifert, Leon S. Chao, David B. Newell, Ruimin Liu, Richard L. Steiner, Jon R. Pratt
In 2013, a new measurement of the Planck constant h was performed using a watt balance at the National Institute of Standards and Technology (NIST). The value is h=6.626 069 79(30) x 10^{-34} J s. The relative standard uncertainty of this determination is

Determination of the Planck constant using a watt balance with a superconducting magnet system at the National Institute of Standards and Technology

March 31, 2014
Author(s)
Stephan Schlamminger, Darine El Haddad, Frank C. Seifert, Leon S. Chao, David B. Newell, Richard L. Steiner, Jon R. Pratt
In the past two years measurements were performed with a watt balance at the National Institute of Standards and Technology (NIST) to determine the Planck constant. A detailed analysis of these measurements and their uncertainties led to a value of h=6.626

Balance Pan Damping Using Rings Of Tuned Sloshing Liquids

April 1, 2009
Author(s)
Edwin R. Williams, Darine El Haddad, V Generalova, Pierre Gournay, C. Hauch, F. Villar, Richard L. Steiner, Ruimin Liu
This paper describes a new method to damp out balance pan oscillations even when the balance is operated in vacuum. The key is to tune the wavelength of the damping liquid, which resides in a sealed container attached above the pan, to the natural

Hysteresis and Related Error Mechanisms in the NIST Watt Balance Experiment

February 16, 2001
Author(s)
J. Schwarz, Ruimin Liu, David B. Newell, Richard L. Steiner, Edwin R. Williams, Douglas T. Smith, A Erdemir, J Woodford
The NIST Watt Balance experiment is being completely rebuilt after its 1998 determination of the SI Volt and Planck's constant. That measurement yielded a result with approximately 1 x 10 -7 standard relative uncertainty. Because the goal of the new

Reconstruction and Preliminary Tests of the NIST Electronic Kilogram Experiment

May 1, 2000
Author(s)
Richard L. Steiner, David B. Newell, J. Schwarz, Edwin R. Williams, Ruimin Liu
The NIST electronic kilogram experiment is being completely rebuilt into a vaccum chamber within a specially designed laboratory room. Major renovations include reference mass positioning equipment, structural alignment flexures, and a redesigned inductive

Watt's Up, Doc? The NIST Watt Experiment and the Future of the Kg

March 21, 2000
Author(s)
J. Schwarz, Ruimin Liu, David B. Newell, Richard L. Steiner, Edwin R. Williams
The Nist Watt Balance is an interesting and beautiful experiment housed in the nonmagnetic building behind the reactor. The underlying physical principles of the experiment are very simple: a current in a magnetic gradient will produce a force that is

Reference Standards, Uncertainties, and the Future of the NIST Electronic Kilogram

July 1, 1999
Author(s)
Richard L. Steiner, David B. Newell, J. Schwarz, Edwin R. Williams
The National Institute of Standards and Technology (NIST) watt balance experiment recently made a new determination of Planck's constant with a relative standard uncertainty of 87 x 10 -9 (k = 1), concurrently with an upper limit on the drift rate of the

A Result from the NIST Watt Balance and an Analysis of Uncertainties

April 1, 1999
Author(s)
Richard L. Steiner, David B. Newell, Edwin R. Williams
An improved determination of the ratio of power, measured in terms of the Josephson and quantum Hall effects, and also the meter, kilogram, and second, has been completed. The result is expressed as: W 90/W = 1 + (8187) x 10 -9. This is an order of
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