Ultralow-Frequency Noise in High-Bias Precision DC-Coupled Voltage Measurements
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00389635" target="_blank" >RIV/68407700:21230/25:00389635 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/I2MTC62753.2025.11079148" target="_blank" >https://doi.org/10.1109/I2MTC62753.2025.11079148</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/I2MTC62753.2025.11079148" target="_blank" >10.1109/I2MTC62753.2025.11079148</a>
Alternative languages
Result language
angličtina
Original language name
Ultralow-Frequency Noise in High-Bias Precision DC-Coupled Voltage Measurements
Original language description
In research on magnetic sensors and magnetometers (and not only in this field), there is often a need for precise measurement of small voltage variations under high bias or common-mode conditions. These variations are typically at low or ultralow frequencies (ULF, 1 mHz-1 Hz). As the noise of analog-to-digital (AD) and digital-to-analog converters (DA) are scaled with higher values of direct-current bias, we investigate the noise limits of direct measurement and also the ULF noise of voltage references and DA converters suitable for subtracting the large DC bias. We characterized several low-noise references and two D/A converters, with the help of a Weston cell as a DC bias source with ultimately low ultralow-frequency noise. We conclude that a 12-bit DAC with a recently introduced voltage reference is finally able to achieve noise below 0.1 ppm/root Hz at 0.1 Hz.
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
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
2025 IEEE International Instrumentation and Measurement Technology Conference (I2MTC 2025)
ISBN
979-8-3315-0501-1
ISSN
2642-2069
e-ISSN
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Number of pages
5
Pages from-to
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Publisher name
IEEE
Place of publication
Piscataway
Event location
Chemnitz
Event date
May 19, 2025
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001554207900214