Commenced in January 2007
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Edition: International
Paper Count: 1

Search results for: Besselfunctions

1 Impedance of an Encircling Coil due to a Cylindrical Tube with Varying Properties

Authors: Valentina Koliskina

Abstract:

Change in impedance of an encircling coil is obtained in the present paper for the case where the electric conductivity and magnetic permeability of a metal cylindrical tube depend on the radial coordinate. The system of equations for the vector potential is solved by means of the Fourier cosine transform. The solution is expressed in terms of improper integral containing modified Bessel functions of complex order.

Keywords: Eddy currents, magnetic permeability, Besselfunctions

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