Preprints
https://doi.org/10.5194/egusphere-2022-293
https://doi.org/10.5194/egusphere-2022-293
 
16 May 2022
16 May 2022
Status: this preprint is open for discussion.

Quad-Mag Board for CubeSat Applications

Brady P. Strabel1, Leonardo H. Regoli1,2, Mark B. Moldwin1, Lauro V. Ojeda3, Yining Shi1, Jacob D. Thoma1,4, Isaac S. Narrett1,5, Bret Bronner6, and Matthew Pellioni1,7 Brady P. Strabel et al.
  • 1Climate and Space Sciences and Engineering, College of Engineering, University of Michigan, Ann Arbor, MI, USA
  • 2The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA
  • 3Mechanical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI, USA
  • 4Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
  • 5Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
  • 6Made In Space Incorporated, Moffett Field, California, USA
  • 7General Dynamics Land Systems, Sterling Heights, MI, USA

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 two reduction in the noise floor established for an individual sensor via oversampling with multiple sensors. The instrument experimentally achieved a noise floor of 5.345 nT (individual axis), averaging across each axis of the four magnetometers, at a 65 Hz sampling rate. This approaches the previously theoretically established limit for the system of 4.37 nT at 40 Hz. A single on-board, 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 1 nT magnetic field measurements at 1 Hz using commercial-off-the-shelf sensors for space applications.

Brady P. Strabel et al.

Status: open (extended)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-293', Boris Ginzburg, 26 May 2022 reply
    • AC1: 'Reply on RC1', Brady Strabel, 04 Aug 2022 reply

Brady P. Strabel et al.

Model code and software

Quad-Mag Data Analysis Brady P. Strabel https://doi.org/10.5281/zenodo.6515198

Brady P. Strabel et al.

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Short summary
The design, characteristics, and performance of a CubeSat magnetometer board (Quad-Mag) equipped with four PNI RM3100 magnetometers is presented. The inclusion of four sensors allows a potential factor of two reduction in the noise floor established for an individual sensor via oversampling with multiple sensors. The Quad-Mag is shown to enable 1 nT magnetic field measurements at 1 Hz and 5.345 nT at 65 Hz using commercial-off-the-shelf sensors for space applications.