Determination of initial permeability in soft ferrites with the modified Rowland’s ring method
Keywords:
75.60.Ej, 75.50.Gg, 75.40.Gb, Soft ferrites, Magnetic properties, Initial permeability, Magnetic circuit.Abstract
A methodology is presented, to measure the initial permeability of soft ferrites (Ni-Zn and Mn-Zn); based in the Rowland-ring method. Plots of the excitation voltages versus the induction voltages of a closed magnetic circuit are obtained by employing a software developed in our work group. The method allows to calculate the value of the initial permeability using the slope in the lineal zone of these curves. The importance of establishing the experimental conditions for the determination of ?i is fundamental to restrict the answer in frequency and temperature of the studied materials.References
J. Buck. Automatic hysteresisgraph speeds accurate analysis of soft magnetic materials. Feature PCIM article. http://walkerscientific.com/buc.pdf.
CWS ByteMark. http://www.cwsbytemark.com
S. B. Dewang, A. Straughen. Power semiconductor circuit. John Wiley, 1975.
W. H. Hayt Jr., J. E. Kemmerly. Análisis de circuitos en ingeniería. Mc. GrawHill, 2 edición, 1997
J. G. Proakis, D. G. Manolakis. Digital signal prosseing. (Prentice Hall, 1996), pp. 968.
D. J. Kruglinski, G. Shepherd, S. Wingo. Programming Microsoft Visual C++. Mocrosoft Press, pp. 115. 1998.
National Instruments. Data Acquisition (DAQ) Hardware. On Line
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