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Author Dallago, E. ♦ Ferri, M. ♦ Malcovati, P. ♦ Rossini, A. ♦ Venchi, G. ♦ Baschirotto, A.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2007
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Earth ♦ Magnetic fields ♦ Magnetic field measurement ♦ Magnetic sensors ♦ Integrated circuit measurements ♦ Magnetic circuits ♦ Coupling circuits ♦ Sensor systems ♦ Performance evaluation ♦ Poles and towers
Abstract In this paper we present an acquisition system to measure the Earth magnetic field (whose full-scale value is of the order of 60 muT), consisting of a microcontrolled management subsystem, a CMOS integrated interface circuit and a 2D integrated micro-flux gate magnetic sensor. The couple of orthogonal axis of the sensor makes the system suitable for realizing an electronic compass device. The complete acquisition system achieves an accuracy resulting in a maximum error of 1.5deg in the measurement of the Earth's magnetic field direction, providing a digital output through an RS232 serial interface. Furthermore a measurement setup was developed to evaluate the acquisition system performances. It consist of a precision mechanical structure, in tower form, of a PC software properly developed to post process the data from the acquisition system and of a Helmholtz Coils device to estimate the linearity of the system. This setup allows to perform a completely automated and numerically controlled characterization of the acquisition system.
Description Author affiliation: Univ. of Pavia, Pavia (Dallago, E.; Ferri, M.; Malcovati, P.; Rossini, A.; Venchi, G.)
ISBN 9781424412617
ISSN 19300395
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2007-10-28
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 1.12 MB
Page Count 4
Starting Page 240
Ending Page 243


Source: IEEE Xplore Digital Library