Abstract
We report on the realization and preliminary validation of a quantum-based sampling power standard, based on a 1 V Programmable Josephson Voltage Standard (PJVS). The PJVS has been integrated into an existing sampling power standard along with a new synchronous multiplexer. Measurement scenarios for voltage and power measurements have been implemented and internally validated. Results of the measurement comparison against the Italian primary electrical power standard at 53Hz agree well within the respective uncertainties, and did not exceed 15μW/VA from 120V to 240V and 5A and any power factor. Likewise, measurements of alternating voltage up to a few kilohertz show good agreement when compared against AC/DC voltage transfer method. The article illustrates the quantum power standard and its main constituents, measurement scenario, comparison results and discussion, along with a preliminary estimation of the uncertainty budget.
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