Offset drift in orthogonal fluxgate and importance of closed-loop operation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00358258" target="_blank" >RIV/68407700:21230/22:00358258 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.sna.2022.113583" target="_blank" >https://doi.org/10.1016/j.sna.2022.113583</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.sna.2022.113583" target="_blank" >10.1016/j.sna.2022.113583</a>
Alternative languages
Result language
angličtina
Original language name
Offset drift in orthogonal fluxgate and importance of closed-loop operation
Original language description
In this paper we show an up-to-now unexplained source of offset drift affecting the fundamental mode orthogonal fluxgate. After a sudden change or removal of the magnetic field, we observe an offset transient which lasts units to hundreds of seconds. We exclude the thermal origin of such transient as well as the electric origin in the pick- up coil resonance circuit or sensing amplifiers. We prove that this transient has magnetic origin, since it depends on both the amplitude and the duration of the pulse of magnetic field applied to the sensor which can be expressed as magnetic energy. We conclude that operating the fundamental mode orthogonal fluxgate in a closed feedback-loop is useful by suppressing this transient behavior by keeping the core in a (almost) zero field, however when switching the magnetometer sensor on/off, this transient has to be taken into account.
Czech name
—
Czech description
—
Classification
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
Result continuities
Project
<a href="/en/project/GA20-19686S" target="_blank" >GA20-19686S: To the origin of the fluxgate noise</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Sensors and Actuators A: Physical
ISSN
0924-4247
e-ISSN
1873-3069
Volume of the periodical
342
Issue of the periodical within the volume
August
Country of publishing house
CH - SWITZERLAND
Number of pages
6
Pages from-to
—
UT code for WoS article
000807423100003
EID of the result in the Scopus database
2-s2.0-85131222837