1-pT noise fluxgate magnetometer for geomagnetic measurements and unshielded magnetocardiography

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F20%3A00334308" target="_blank" >RIV/68407700:21230/20:00334308 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/TIM.2019.2949205" target="_blank" >https://doi.org/10.1109/TIM.2019.2949205</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TIM.2019.2949205" target="_blank" >10.1109/TIM.2019.2949205</a>

Result language
angličtina
Original language name
1-pT noise fluxgate magnetometer for geomagnetic measurements and unshielded magnetocardiography
Original language description
We present the development of a low-noise, fundamental-mode, orthogonal fluxgate magnetometer with four amorphous, annealed ferromagnetic wires. The 1-Hz noise obtained in open-loop and closed-loop is as low as 0.75 and 1.5 pTrms/root Hz, respectively, with white noise level about 0.6 pTrms/root Hz. This is to our knowledge the lowest figure published for a fluxgate magnetometer so far. We compared the instrument performance to a low-noise observatory magnetometer when doing geomagnetic measurements and show that it is fully suitable for measurements at mHz frequencies, e.g. magnetotellurics. The magnetometer performance enables room-temperature, unshielded magnetocardiography.
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
—
OECD FORD branch
20201 - Electrical and electronic engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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