Physics
Scientific paper
Sep 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982raee...52..431a&link_type=abstract
Radio and Electronic Engineer, vol. 52, Aug.-Sept. 1982, p. 431-436.
Physics
1
Earth Observations (From Space), Geomagnetism, Magnetometers, Satellite-Borne Instruments, Secular Variations, Solar Terrestrial Interactions, Calibrating, Data Acquisition, Data Correlation, Earth Rotation, Magsat Satellites, Polar Orbits, Real Time Operation
Scientific paper
The magnetometer aboard the University of Surrey satellite (UOSAT) and its associated electronics are described. The basic fluxgate magnetometer employed has a dynamic range of plus or minus 8000 nT with outputs digitized by a 12-bit successive approximation A-D converter having a resolution of plus or minus 2 nT. Noise in the 3-13 Hz bandwidth is less than 1 nT. A bias field generator extends the dynamic range to plus or minus 64,000 nT with quantization steps of 8000 nT. The magnetometer experiment is expected to provide information on the secular variation of the geomagnetic field, and the decay rate of the dipole term. Special emphasis will be placed on the acquisition of real time and memory data over the poles which can be correlated with that from Magsat.
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