Fundamental Electrical Measurements Group

Electronic Kilogram—This project provides the basis for a new definition of mass, based on unchanging quantum properties of nature rather than a physical artifact.  This is accomplished through a …

Quantum Conductance Project/Graphene-Based Quantum Metrology —The goal of the Quantum Conductance Project is to develop graphene metrology for intrinsic electrical standards, specifically near-room-temperature quantum Hall resistance standards.  …

AC-DC Difference—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 calibration service, and through …

Metrology of the Ohm—Resistance standards traceable to NIST provide references for measurements of current at levels from 2000 A to below 1 pA and are used to support a wide variety of impedance, temperature, strain, …