Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 85, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4904702
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Funding
- UK Science Technology and Facilities Council (STFC) [ST/K001051/1]
- ESA under the General Support Technology Programme [4000106430]
- Permanent Open Call for Technology Demonstrators [IC-1109-001]
- STFC Grant [ST/I505713/1]
- STFC [ST/I505713/1, ST/G00725X/1, ST/K001051/1, ST/H002383/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/I505713/1, ST/K001051/1, ST/G00725X/1, ST/H002383/1] Funding Source: researchfish
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We report on the design and development of a low resource, dual sensor vector magnetometer for space science applications on very small spacecraft. It is based on a hybrid device combining an orthogonal triad of commercial anisotropic magnetoresistive (AMR) sensors with a totem pole H-Bridge drive on a ceramic substrate. The drive enables AMR operation in the more sensitive flipped mode and this is achieved without the need for current spike transmission down a sensor harness. The magnetometer has sensitivity of better than 3 nT in a 0-10 Hz band and a total mass of 104 g. Three instruments have been launched as part of the TRIO-CINEMA space weather mission, intercalibration against the International Geomagnetic Reference Field model makes it possible to extract physical signals such as field-aligned current deflections of 20-60 nT within an approximately 45 000 nT ambient field. (C) 2014 AIP Publishing LLC.
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