A method for magnetic field determination inside magnetic fluids

The method is based on the phenomenon of levitation of a nonmagnetic spherical body immersed in a magnetic fluid situated in a magnetic field characterized by a vertical gradient oriented from top to bottom. This structure of the field has been obtained in a wedge-shaped air gap. Taking into account...

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Veröffentlicht in:	Journal of magnetism and magnetic materials 1999-07, Vol.201 (1-3), p.404-406
Hauptverfasser:	Hadgia, S, Iusan, V, Stanci, A
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Colloidal state and disperse state Exact sciences and technology General and physical chemistry Levitation Magnetic field Magnetic fluids Physical and chemical studies. Granulometry. Electrokinetic phenomena
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Beschreibung
Zusammenfassung:	The method is based on the phenomenon of levitation of a nonmagnetic spherical body immersed in a magnetic fluid situated in a magnetic field characterized by a vertical gradient oriented from top to bottom. This structure of the field has been obtained in a wedge-shaped air gap. Taking into account the levitation condition and the hyperbolic structure of the field, a theoretical formula for the z coordinate was used. The comparison between experimental and theoretical data allow to obtain the magnetic field intensity inside the magnetic fluids.
ISSN:	0304-8853
DOI:	10.1016/S0304-8853(99)00018-9