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The Applied Electrical Metrology group supports the nation's infrastructure by providing calibration services in the general areas of AC and DC voltage, current, phase and power. As part of this mission, the group maintains an active research program in precision measurement systems based on quantum voltage standards to support calibration services within the group.
The new year 2023 brings accelerated expansion of a nationwide network of electric vehicle supply equipment (EVSE), supported by the U.S. Department of Energy
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
The NIST Ac-dc2 Difference Project performs leading edge measurement services and research for ac-dc difference measurements and dc voltage metrology. We
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 Office of Weights and Measures (OWM) will begin work on developing a guideline document assessing methods for establishing traceability to primary SI
Practically all measurable physical phenomena are eventually transformed into corresponding electrical representations. The transduction of a signal into its
A detailed analysis of the uncertainties encountered in ac-dc difference measurements with an AC Josephson Voltage Standard (ACJVS) is presented. While the