Noise in single-core gradiometers based on orthogonal fluxgate
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00375901" target="_blank" >RIV/68407700:21230/24:00375901 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/JSEN.2024.3387101" target="_blank" >https://doi.org/10.1109/JSEN.2024.3387101</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/JSEN.2024.3387101" target="_blank" >10.1109/JSEN.2024.3387101</a>
Alternative languages
Result language
angličtina
Original language name
Noise in single-core gradiometers based on orthogonal fluxgate
Original language description
In the design of orthogonal fluxgate sensors, a common approach involves employing a pick-up coil of maximum length to enhance signal strength. Traditionally, gradiometers are implemented by utilizing two distinct sensors and calculating the gradient as the difference between their outputs. Alternatively, the use of two shorter coils on the same core is often avoided due to concerns that a shorter coil may yield a lower signal-to-noise ratio. Contrary to this conventional belief, this article demonstrates that a two-coil gradiometer can be a viable and effective solution. Specifically, we establish that opting for a 15 mm long coil over a 50 mm long coil results in only a marginal increment from 0.9 to 1.3 pT/ root Hz, a level deemed acceptable for numerous applications with proper design considerations. In addition, we elucidate the distribution of magnetic flux density along the magnetic core, highlighting its role in detecting rapidly decaying magnetic gradients even at considerable distances. Furthermore, we delve into the correlation of noise in multiple coils on the same core and provide insights into achieving independent measurements for each coil.
Czech name
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Czech description
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Classification
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
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Sensors Journal
ISSN
1530-437X
e-ISSN
1558-1748
Volume of the periodical
24
Issue of the periodical within the volume
14
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
22326-22335
UT code for WoS article
001273156700129
EID of the result in the Scopus database
2-s2.0-85195366820