Virtual Training Laboratory for Primary Impedance Metrology

Abstract

This paper presents the concept and some aspects of the physical implementation of a virtual training laboratory in the field of primary impedance metrology. The creation of a virtual training laboratory provides a novel method of disseminating metrological knowledge and expertise in a practical way and at a low cost. It will expose new users to the live experience of operating a digital impedance bridge thus helping to encourage the uptake of this novel and useful impedance measurement technology. The virtual training laboratory was developed as part of the EMPIR projects VersICal 17RPT04, A versatile electrical impedance calibration laboratory based on digital impedance bridges, and GIQS 18SIB07, Graphene impedance quantum standard.

Improving the Accuracy of Digital Unbalanced Impedance Bridges

“…The first bridge with digital sine wave voltage sources, devoid of elements with strong magnetic coupling, is presented in [1]. In the following years, new digital bridge solutions were presented, with the main trend being related to the construction of bridges for accurate impedance measurements and developed mainly by the National Metrological Institutes (NMI) or in cooperation with them [2][3][4][5][6][7][8][9][10][11][12][13][14].…”