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Published (Version of record)Geosci. Instrum. Method. Data Syst., 7, 265-276, 2018CC BY V4.0, Open Access
Journal article
A hybrid fluxgate and search coil magnetometer concept using a racetrack core
Geoscientific Instrumentation, Methods and Data Systems, Vol.7(4), pp.265-276
10/15/2018
DOI: 10.5194/gi-7-265-2018
Abstract
A proof-of-concept hybrid magnetometer is presented, which simultaneously operates as both a fluxgate and a search coil, allowing it to sense the magnetic field from DC to 2 kHz using a single sensor. Historically, such measurements would normally require two dedicated instruments, and each would typically require deployment on its own dedicated boom as the instruments mutually interfere. A racetrack fluxgate core combined with a long solenoidal sense winding is shown to be moderately effective as a search coil magnetometer, and the search coil effect can be captured without introducing significant hardware complexity beyond what is already present in a typical fluxgate instrument. Several methods of optimising the search coil action of the hybrid instrument are compared with the best method providing sensitivity and noise performance between comparably sized traditional air-core and solid-core search coil instruments. This hybrid sensor topology should miniaturise to platforms such as CubeSats for which multiple boom-mounted instruments are generally impractical, so a single hybrid instrument providing modest, but scientifically useful, sensitivity from DC to kHz frequencies would be beneficial.
Details
- Title: Subtitle
- A hybrid fluxgate and search coil magnetometer concept using a racetrack core
- Creators
- David M Miles - University of Iowa, Physics and AstronomyB Barry Narod - University of British ColumbiaDavid K Milling - University of AlbertaIan R Mann - University of AlbertaDavid Barona - University of AlbertaGeorge B Hospodarsky - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Geoscientific Instrumentation, Methods and Data Systems, Vol.7(4), pp.265-276
- Publisher
- COPERNICUS GESELLSCHAFT MBH; GOTTINGEN
- DOI
- 10.5194/gi-7-265-2018
- ISSN
- 2193-0856
- eISSN
- 2193-0864
- Number of pages
- 12 pages
- Copyright
- © Author(s) 2018
- Grant note
- DOI: 10.13039/501100000016, name: Canadian Space Agency, award: 9F063-140909/006/MTB; DOI: 10.13039/501100002790, name: Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada, award: Discovery Grant; DOI: 10.13039/100008893, name: University of Iowa, award: Old Gold Summer Fellowship
- Language
- English
- Date published
- 10/15/2018
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9983561198202771
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