High perfomance selectable value transportable high dc Voltage standard

TL;DR

This paper presents a high-performance, transportable high dc voltage standard covering 10 V to 100 V, designed for laboratory and inter-laboratory use, with enhanced accuracy and stability over existing calibrators.

Contribution

Development of a portable high dc voltage standard with improved accuracy, stability, and transportability for use in calibration and inter-laboratory comparisons.

Findings

Better noise performance than existing calibrators

Enhanced short-mid-term stability

Superior transportability and insensitivity

Abstract

At National Institute of Metrological Research (INRIM), a selectable-value Transportable High dcVoltage Standard (THVS) operating in the range from 10 V to 100 V in steps of 10 V, was developed. This Standard was built to cover the lack of high level dc Voltage Standards at voltages higher than 10 V to employ as laboratory (local) or travelling Standards for Inter-Laboratory Comparisons (ILCs). A ground-mobile electronic technique was used to enhance the accuracy of the THVS at the higher values. The THVS shows better noise, better short-mid-term stability than top level dc Voltage and multifunction calibrators (MFCs) and better suitability and insensibility to be transported than these instruments. The project is extensible to 1000 V.