Measurement of low AC currents by the standard current probe equipped with lock-in amplifier
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F22%3A43966047" target="_blank" >RIV/49777513:23220/22:43966047 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore.ieee.org/document/9905091" target="_blank" >https://ieeexplore.ieee.org/document/9905091</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/Diagnostika55131.2022.9905091" target="_blank" >10.1109/Diagnostika55131.2022.9905091</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of low AC currents by the standard current probe equipped with lock-in amplifier
Original language description
Most of standard current probes are intended for the measurement of medium or higher currents. Usually, due to limited dynamic range, characteristic sensitivity and inner noise of the probe, it is hardly possible to measure currents lower than 100 mA. The paper deals with the possibility to extend the dynamic range of the current probe by an additional external lock-in amplifier. The paper describes the principle of the lock-in amplifier in general and design of the laboratory fixture of lock-in amplifier based on AD630 circuit as well. The designed amplifier was used to condition the output of the Agilentll46A current probe. The experiment is described in detail. The results show that thanks to the lockin amplifier the currents even lower than 1 mA can be easily detected.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 2022 International Conference on Diagnostics in Electrical Engineering (Diagnostika) : CDEE 2022
ISBN
978-1-66548-082-6
ISSN
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e-ISSN
2464-708X
Number of pages
4
Pages from-to
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Publisher name
University of West Bohemia in Pilsen
Place of publication
Pilsen
Event location
Pilsen, Czech Republic
Event date
Sep 6, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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