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National Institute of Standards and Technology (NIST) researcher Allen R. Hefner, Jr., has been named a finalist for the 2018 Samuel J. Heyman Service to
After years of effort and scores of iterations, PML researchers have developed a new generation of devices that can reduce the uncertainties in ac voltage
GAITHERSBURG, MD—A leading experimental method for defining the kilogram in terms of properties of nature is now more accurate than ever, scientists at the
Our country's way of life depends on the electric power distribution system. Keeping the national electric grid in good working order -- and ensuring power is
The NIST ac-dc Difference Project provides U.S. industry with the essential link between ac and the corresponding dc electrical standards via a world-class
Units are at the heart of science and technology. Most measurements require units to express their result. The International System of Units (SI) provides a
S. Yang, Stefan Cular, Alain Rufenacht, Charles J. Burroughs, Paul D. Dresselhaus, Samuel P. Benz, M. N. Ng
Standards and Calibration Laboratory (SCL) setup in 2018 a liquid helium based programmable Josephson voltage standard (PJVS) developed by the National