A Digital Bridge Evaluation up to 100 kHz for Precision Impedance Measurements

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F23%3AN0000028" target="_blank" >RIV/00177016:_____/23:N0000028 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore.ieee.org/document/10122488/authors#authors" target="_blank" >https://ieeexplore.ieee.org/document/10122488/authors#authors</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TIM.2023.3273649" target="_blank" >10.1109/TIM.2023.3273649</a>

Result language
angličtina
Original language name
A Digital Bridge Evaluation up to 100 kHz for Precision Impedance Measurements
Original language description
A digital coaxial bridge was evaluated for its frequency extension up to 100 kHz using impedance standards with known reference values. The bridge can be configured in different modes of what are known as digitally assisted (DA) or fully digital (FD) modes, and both were studied. The measurement results showed that the FD bridge cannot reach an accuracy below 100×10−6 at 100 kHz, even for 1:1 comparison, unlike the DA bridge. Thus, an additional voltage injection method was attempted to achieve better accuracy for the FD bridge. As a result, 10:1 capacitance ratio measurements showed a good agreement with the reference values at the level of 10−5 for both DA and FD bridges at the highest frequency of 100 kHz.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering

Project
<a href="/en/project/8B19009" target="_blank" >8B19009: Graphene impedance quantum standard</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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