Some methods for magnetometer zero-level determination

Author

Markgraf, Stefan ; Glassmeier, Karl-Heinz ; Musmann, Günter

Author_Institution

Tech. Univ. Braunschweig, Germany

Volume

34

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

739

Lastpage

746

Abstract

Zero-level determination is an important aspect of the processing of magnetometer observations made onboard spacecrafts. Due to the presence of instrument offset drift as well as magnetic fields produced by the spacecraft, such a zero-level determination requires in-flight methods in addition to preflight calibration. Two different such techniques have been studied, taking advantage of observations made by instruments other than the magnetometer. The first is based on measurements obtained by electron drift instruments, originally designed to measure electric fields. The authors discuss the applicability of such instruments to determine magnetometer offsets. The second method is based on particle pressure tensor measurements, where pressure anisotropy is used to determine the magnetic field direction

Keywords

atmospheric measuring apparatus; calibration; geomagnetism; geophysical equipment; magnetometers; magnetosphere; artificial satellite instrument; atmosphere; calibration; direction; geophysical equipment; in-flight method; instrument offset drift; magnetic field; magnetometer; magnetometer observations; magnetometry; magnetosphere; measurement technique; particle pressure tensor; spacecraft; zero-level determination; Calibration; Electric variables measurement; Electrons; Instruments; Magnetic field measurement; Magnetometers; Particle measurements; Pressure measurement; Space vehicles; Tensile stress;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.499753

Filename

499753