Self-Compensating Networks for Four-Terminal-Pair Impedance Definition in Current Comparator Bridges

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F15%3A%230001088" target="_blank" >RIV/00177016:_____/15:#0001088 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/TIM.2015.2490898" target="_blank" >http://dx.doi.org/10.1109/TIM.2015.2490898</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TIM.2015.2490898" target="_blank" >10.1109/TIM.2015.2490898</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Self-Compensating Networks for Four-Terminal-Pair Impedance Definition in Current Comparator Bridges

Popis výsledku v původním jazyce

The four-terminal-pair (4TP) definition of impedance standards allows reaching ultimate accuracy in impedance metrology. In general, the 4TP definition requires dedicated circuitry to be included in the bridge network and the attainment of auxiliary bridge balances during the measurement. A careful choice of the network topology allows the bridge to be self-compensating: the 4TP definition is in large part achieved by the behavior of the network itself without any adjustment. The additional circuitry required for impedance definition can therefore be simpler, the balancing procedure becomes easier, and a more robust 4TP can be achieved. This paper analyzes a current comparator bridge network with a topology featuring self-compensation. A digitally assisted test bridge has been implemented; test measurements on ac resistance comparison in the 25?100- Omega range at kilohertz frequencies are reported.

Název v anglickém jazyce

Self-Compensating Networks for Four-Terminal-Pair Impedance Definition in Current Comparator Bridges

Popis výsledku anglicky

The four-terminal-pair (4TP) definition of impedance standards allows reaching ultimate accuracy in impedance metrology. In general, the 4TP definition requires dedicated circuitry to be included in the bridge network and the attainment of auxiliary bridge balances during the measurement. A careful choice of the network topology allows the bridge to be self-compensating: the 4TP definition is in large part achieved by the behavior of the network itself without any adjustment. The additional circuitry required for impedance definition can therefore be simpler, the balancing procedure becomes easier, and a more robust 4TP can be achieved. This paper analyzes a current comparator bridge network with a topology featuring self-compensation. A digitally assisted test bridge has been implemented; test measurements on ac resistance comparison in the 25?100- Omega range at kilohertz frequencies are reported.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

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Projekt

<a href="/cs/project/7AX13027" target="_blank" >7AX13027: Automated impedance metrology extending the quantum toolbox for electricity</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Instrumentation and Measurement

ISSN

0018-9456

e-ISSN

—

Svazek periodika

65

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

1149-1155

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84946762033