Author:
Kühn M.,John W.,Weigel R.
Abstract
Abstract. This contribution contains the mechanisms for calculation of magnetic shielding effectiveness from material samples, based on measured electrical parameters. For this, measurement systems for the electrical conductivity of high and low conductive material samples with respect to the direction of current flow are presented and discussed. Also a definition of isotropic and anisotropic materials with electrical circuit diagrams is given. For prediction of shielding effectiveness for isotropic and anisotropic materials, several analytical models are presented. Also adaptions to gain a near field solution are part of this contribution. All analytical models will also be validated with an adequate measurement system.
Reference8 articles.
1. Bowler, N.: Theory of four-point direct-current potential drop measurements on a metal plate, Res. Nondestruct. Eval., 17, 29–48, 2006.
2. Imo, F., Fuchs, C., and Schwab, A. J.: Erweitertes Impedanzkonzept zur Berechnung von geschlossenen Schirmen, Arch. Elektrotech., 76, 437–441, 1993.
3. Michel, M.: Leistungselektronik: Einführung in Schaltungen und deren Verhalten, Springer-Verlag, 5th edn., 2011.
4. Moser, J.: Low-Frequency Shielding of a Circular Loop Electromagnetic Field Source, IEEE T. Electromagn. C., 9, 6–18, 1967.
5. Schelkunoff, S. A.: The Impedance Concept and its Application to Problems of Reflection, Refraction, Shielding and Power Absorption, Bell Syst. Tech. J., 17, 17–48, https://doi.org/10.1002/j.1538-7305.1938.tb00774.x, 1938.
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