Geoscientific Instrumentation, Methods and Data Systems
Geoscientific Instrumentation, Methods and Data Systems
GI
Articles | Volume 14, issue 2
Articles | Volume 14, issue 2
https://doi.org/10.5194/gi-14-447-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gi-14-447-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 2
Research article
 | 
08 Dec 2025
Research article |  | 08 Dec 2025

Comparison of noise levels of two magnetometer types and their suitability for different space environments

Gerlinde Timmermann, David Fischer, Hans-Ulrich Auster, Ingo Richter, Benjamin Grison, and Ferdinand Plaschke

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Short summary
We've compared the amplitude spectral densities of a fluxgate magnetometer (FGM) and an anisotropic magnetoresistive (AMR) magnetometer during ground testing with the amplitude spectral densities obtained in different regions of near-Earth space. The FGM can measure the fields in the different space regions and their fluctuations within a frequency range of 1 mHz to 2.5 Hz. The AMR magnetometer is only suitable for more turbulent regions such as the magnetosheath due to its higher noise levels.
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