Calculation of the difference in impedance for a solenoid coil with and without a sample conductor

Author

Nakane, Hiroshi

Author_Institution

Dept. of Electr. Eng., Sci. Univ. of Tokyo, Japan

Volume

40

Issue

3

fYear

1991

fDate

6/1/1991 12:00:00 AM

Firstpage

544

Lastpage

548

Abstract

Either the resistivity and permeability of a magnetic material or the resistivity and magnetic penetration depth of a superconductor can be simultaneously estimated from the difference in the complex impedance between a circular solenoid coil coaxially surrounding a cylindrical conductor and an identical coil without a sample conductor. A method for calculating the difference in the complex impedance at a high frequency including the displacement current to an accuracy of 0.1% is reported. Comparison of the values calculated by this method and the values obtained by a conventional method which does not include the term of displacement current is also included

Keywords

electrical conductivity measurement; magnetic permeability measurement; penetration depth (superconductivity); solenoids; superconducting materials; circular solenoid coil; complex impedance; cylindrical conductor; displacement current; magnetic material; magnetic penetration depth; permeability; resistivity; sample conductor; superconductor; Coaxial components; Conducting materials; Conductivity; Impedance; Magnetic materials; Permeability; Solenoids; Superconducting coils; Superconducting magnets; Superconducting materials;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.87016

Filename

87016