Vector feedback homogeneity and inner layout influence on fluxgate sensor parameters

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Title:	Vector feedback homogeneity and inner layout influence on fluxgate sensor parameters
Author:	Petrucha, V; Janosek, M; Azpúrua Auyanet, Barón Marco Aurelio
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica
Abstract:	Vector feedback is a concept which can significantly improve linearity and stability of a magnetic field sensor. The feedback coils effectively cancel the measured magnetic field in the inner volume of the triaxial sensor. Thus, in case of fluxgates, it suppresses one possible source of nonlinearity—cross-field sensitivity error. The triaxial sensor axes orthogonality should be primarily defined by the orientation of the feedback coils, while the sensitivities are defined by feedback coil constants. The influence of the homogeneity of the feedback field and the influence of the sensor inner layout on calibration parameters of a vectorially compensated triaxial fluxgate magnetometer are presented.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura -Magnetometers -Field homogeneity -fluxgate sensor -scalar calibration -Magnetòmetre
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Document type:	Article - Submitted version Article
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