Alternative Traceability Chains of Impedance Units With Fully Digital Impedance Bridges

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F25%3AN0000155" target="_blank" >RIV/00177016:_____/25:N0000155 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/25:00389566

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/10934971" target="_blank" >https://ieeexplore.ieee.org/document/10934971</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TIM.2025.3552391" target="_blank" >10.1109/TIM.2025.3552391</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Alternative Traceability Chains of Impedance Units With Fully Digital Impedance Bridges

Popis výsledku v původním jazyce

We discuss alternative calibration schemes for disseminating the capacitance unit farad from the reference resistance standard using digital impedance bridges. The impedance ratio measurements are performed with a fully digital (FD) bridge. High stability and low crosstalk of the involved generators SWG enable us to perform extreme impedance ratio scaling up to 129:1. Such ratio enables direct linkage even of 100-pF capacitor to the von Klitzing constant RH /2 (12.9 k Ω ). We introduce the idea of involving calculable resistance standards, enabling the laboratory to realize the capacitance scale from dc quantum Hall effect (QHE) with only one dc resistance bridge and one digital bridge. Furthermore, an alternative involvement of a single ac Josephson source in a digital bridge is proposed. Finally, experimental measurements as practical examples are given to demonstrate the discussed traceability chains.

Název v anglickém jazyce

Alternative Traceability Chains of Impedance Units With Fully Digital Impedance Bridges

Popis výsledku anglicky

We discuss alternative calibration schemes for disseminating the capacitance unit farad from the reference resistance standard using digital impedance bridges. The impedance ratio measurements are performed with a fully digital (FD) bridge. High stability and low crosstalk of the involved generators SWG enable us to perform extreme impedance ratio scaling up to 129:1. Such ratio enables direct linkage even of 100-pF capacitor to the von Klitzing constant RH /2 (12.9 k Ω ). We introduce the idea of involving calculable resistance standards, enabling the laboratory to realize the capacitance scale from dc quantum Hall effect (QHE) with only one dc resistance bridge and one digital bridge. Furthermore, an alternative involvement of a single ac Josephson source in a digital bridge is proposed. Finally, experimental measurements as practical examples are given to demonstrate the discussed traceability chains.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/8B19009" target="_blank" >8B19009: Graphene impedance quantum standard</a><br>

Návaznosti

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

Rok uplatnění

2025

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

1557-9662

Svazek periodika

74

Číslo periodika v rámci svazku

20 March 2025

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

001500436900011

EID výsledku v databázi Scopus

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