Title :
COTS-Based Wireless Magnetic Sensor for Small Satellites
Author :
Michelena, M.D. ; Arruego, I. ; Oter, J.M. ; Guerrero, H.
Author_Institution :
INTA, Univ. Poletcnica de Madrid, Madrid, Spain
fDate :
4/1/2010 12:00:00 AM
Abstract :
We report on the utilization of a commercial off-the-shelf (COTS) magnetic sensor for the mission NANOSAT-01 and the set of tests that have been developed to up-screen it. The magnetic sensor head is a Wheatstone bridge formed by four anisotropic magnetoresistances (AMR). AMR sensors are an adequate choice for medium- to high-sensitivity (~3 mV/V/G) and resolution (~ 3 ¿G) requirements, mostly due to their low weight and volume that are so interesting for the aerospace industry. The whole system installed in NANOSAT-01 is formed by two biaxial sensors with two redundant PCBs (printed circuit boards) of RAD-HARD proximity electronics, which conditions the AMR output signal, measure the temperature, and resets the AMR. This magnetic sensor belongs to the attitude control system (ACS) of the satellite.
Keywords :
aerospace instrumentation; artificial satellites; attitude control; magnetic sensors; magnetoresistive devices; wireless sensor networks; anisotropic magnetoresistances; attitude control system; commercial off-the-shelf magnetic sensor; small satellites; wireless magnetic sensor; Anisotropic magnetoresistance; Bridge circuits; Magnetic heads; Magnetic sensors; Satellites; Signal resolution; Temperature measurement; Temperature sensors; Testing; Wireless sensor networks;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2010.5461640
