Fundamental Electrical Measurements Group

The FEM group uses physical laws, quantum invariants, and ultra-precision measurement techniques to create and refine a core set of experiments used as the US national standards for the ohm, farad, and, in the near future, the kilogram. The group strives to improve the accessibility, reliability, precision, accuracy, and range of values that can be achieved and disseminated from each standard by advancing the state of the art in optical, mechanical, and, of course, electrical systems used in the realization of these units.