A method for simultaneously measuring resistivity and permeability with a multilayer solenoid coil

Author

Nakane, Hiroshine ; Sohara, Yoshio ; Omori, Shunichi

Author_Institution

Sci. Univ. of Tokyo, Japan

Volume

39

Issue

1

fYear

1990

fDate

2/1/1990 12:00:00 AM

Firstpage

32

Lastpage

37

Abstract

A formula is given for a more accurate estimate of either the resistivity and permeability of a cylindrical magnetic material or the resistivity and penetration depth of a cylindrical superconductor, using the difference in the complex impedance between a circular multilayer solenoid coil having a conductor and a similar coil without a conductor. In comparison with the conventional method which uses a single-layer solenoid coil, it is shown experimentally that a multilayer solenoid coil is more effective for a short sample conductor because a larger difference in the complex impedance is obtained without increasing the width of the solenoid coil. The results of measurements of magnetic and superconductive materials are included

Keywords

electric sensing devices; electrical conductivity measurement; magnetic permeability measurement; solenoids; Fe; Y-Ba-Cu-O; complex impedance; cylindrical conductor; cylindrical magnetic material; cylindrical superconductor; electrical resistivity measurement; high temperature superconductors; magnetic materials; magnetic permeability measurement; multilayer solenoid coil; penetration depth; superconductive materials; width; Conducting materials; Conductivity; Impedance; Magnetic materials; Magnetic multilayers; Permeability measurement; 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

10.1109/19.50411

Filename

50411