<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The article describes systematic error analysis for realized chopper low-resistance comparator. The objective was to determine optimal working conditions, considering limited resolution (about 10 nV) and resistance variation due to self-heating caused by increase of measuring current. The analysis and performances of realized chopper low-resistance comparator prototype instrument confirmed the initial assumptions of applied principles. The error for 1 A measuring current is 1.15 ppm in the measuring range of 10 mΩ. It is possible to use the same principle for calculation of optimal measuring current and measurement error in other measurement ranges, as well.</p></abstract>

The article describes systematic error analysis for realized chopper low-resistance comparator. The objective was to determine optimal working conditions, considering limited resolution (about 10 nV) and resistance variation due to self-heating caused by increase of measuring current. The analysis and performances of realized chopper low-resistance comparator prototype instrument confirmed the initial assumptions of applied principles. The error for 1 A measuring current is 1.15 ppm in the measuring range of 10 mΩ. It is possible to use the same principle for calculation of optimal measuring current and measurement error in other measurement ranges, as well.

Optimization of Measuring Current for Chopper Low Resistance Comparator

Serbian Transmission Systems, Nade Dimic 40, 19210 Bor, Serbia

Mining and Metallurgy Institute, Zeleni Bulevar 35, 19210 Bor, Serbia

Technical Faculty of Bor, University of Belgrade, 19210 Bor, Serbia

Measurement Science Review

{"article-title":"Optimization of Measuring Current for Chopper Low Resistance Comparator"}

The article describes systematic error analysis for realized chopper low-resistance comparator. The objective was to determine optimal working conditions,...

Optimization of Measuring Current for Chopper Low Resistance Comparator

Publié en ligne: 15 févr. 2010

Pages: 22 - 24

DOI: https://doi.org/10.2478/v10048-010-0005-7

Mots clés
Low-resistance measurement, chopper comparator, error analysis

This content is open access.

Optimization of Measuring Current for Chopper Low Resistance Comparator

Publié en ligne: 15 févr. 2010

Pages: 22 - 24

DOI: https://doi.org/10.2478/v10048-010-0005-7

Mots clésLow-resistance measurement, chopper comparator, error analysis

This content is open access.

Mots clés
Low-resistance measurement, chopper comparator, error analysis