Investigation of a low-cost magneto-inductive magnetometer for space science applications

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Abstract

A new sensor for measuring low-amplitude magnetic fields that is ideal for small spacecraft is presented. The novel measurement principle enables the fabrication of a low-cost sensor with low power consumption and with measuring capabilities that are comparable to recent developments for CubeSat applications. The current magnetometer, a software-modified version of a commercial sensor, is capable of detecting fields with amplitudes as low as 8:7nT at 40Hz and 2:7nT at 1Hz, with a noise floor of 4pT/√Hz at 1Hz. The sensor has a linear response to less than 3% over a range of ±100000nT. All of these features make the magneto-inductive principle a promising technology for the development of magnetic sensors for both space-borne and ground-based applications to study geomagnetic activity.

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Regoli, L. H., Moldwin, M. B., Pellioni, M., Bronner, B., Hite, K., Sheinker, A., & Ponder, B. M. (2018). Investigation of a low-cost magneto-inductive magnetometer for space science applications. Geoscientific Instrumentation, Methods and Data Systems, 7(1), 129–142. https://doi.org/10.5194/gi-7-129-2018

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