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Measuring the orthogonality error of coil systems

Proceedings of the XVth IAGA Workshop on Geomagnetic Observatory Instruments

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Abstract

Recently, a simple method was proposed for the determination of pitch angle between two coil axes by means of a total field magnetometer. The method is applicable when the homogeneous volume in the centre of the coil system is large enough to accommodate the total field sensor. Orthogonality of calibration coil systems used for calibrating vector magnetometers can be attained by this procedure. In addition, the method can be easily automated and applied to the calibration of delta inclination–delta declination (dIdD) magnetometers. The method was tested by several independent research groups, having a variety of test equipment, and located at differing geomagnetic observatories, including: Nurmijärvi, Finland; Hermanus, South Africa; Ottawa, Canada; Tihany, Hungary. This paper summarizes the test results, and discusses the advantages and limitations of the method.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Measuring the orthogonality error of coil systems
Series title:
Proceedings of the XVth IAGA Workshop on Geomagnetic Observatory Instruments
Year Published:
2012
Language:
English
Publisher:
International Association of Geomagnetism and Aeronomy
Contributing office(s):
Geologic Hazards Science Center
Description:
4 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Proceedings of the XVth IAGA Workshop on Geomagnetic Observatory Instruments
First page:
42
Last page:
45