Quad-Mag board for CubeSat applications
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Published:2022-11-16
Issue:2
Volume:11
Page:375-388
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ISSN:2193-0864
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Container-title:Geoscientific Instrumentation, Methods and Data Systems
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language:en
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Short-container-title:Geosci. Instrum. Method. Data Syst.
Author:
Strabel Brady P.ORCID, Regoli Leonardo H.ORCID, Moldwin Mark B.ORCID, Ojeda Lauro V., Shi Yining, Thoma Jacob D., Narrett Isaac S., Bronner Bret, Pellioni Matthew
Abstract
Abstract. The design, characteristics, and performance of a CubeSat magnetometer board (Quad-Mag) equipped with four PNI RM3100 magnetometers is presented. The low size, weight, power, and cost of the RM3100 enables the inclusion of four sensors on a single board, allowing a potential factor of 2 reduction in the noise floor established for an individual sensor via oversampling with multiple sensors. The instrument experimentally achieved a noise floor of 5.34 nT (individual axis), averaging across each axis of the four magnetometers, at a 65 Hz sampling rate. This approaches the theoretically established limit for the system of 4.37 nT at 40 Hz. A single onboard Texas Instrument MSP430 microcontroller handles synchronization of the magnetometers and facilitates data collection through a simple UART-based command interface to a host system. The Quad-Mag system has a mass of 59.05 g and total power consumption of 23 mW while sampling and 14 mW while idle. The Quad-Mag enables nearly 1 nT magnetic field measurements at 1 Hz using commercial off-the-shelf sensors for space applications under optimal conditions.
Funder
National Aeronautics and Space Administration National Science Foundation
Publisher
Copernicus GmbH
Subject
Atmospheric Science,Geology,Oceanography
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