Measurement of the electrical conductivity of metallic tubes by studying magnetic screening at low frequency

被引：10
|
作者：
Iñiguez, J [1 ]
Raposo, V [1 ]
Flores, AG [1 ]
Zazo, M [1 ]
Hernández-López, A [1 ]
机构：
[1] Univ Salamanca, Dept Fis Aplicada, E-37071 Salamanca, Spain
来源：
AMERICAN JOURNAL OF PHYSICS | 2005年 / 73卷 / 03期
关键词：
D O I：
10.1119/1.1842730
中图分类号：
G40 [教育学];
学科分类号：
040101 ; 120403 ;
摘要：
We discuss a technique for measuring the electrical conductivity in metallic tubes based on Faraday's induction law. A detailed study of magnetic screening in the low frequency approximation leads to expressions that relate the screening coefficient to the geometry, magnetic permeability, and conductivity of the metallic tubes. We discuss experimental results for different tubes. (C) 2005 American Association of Physics Teachers.
引用
收藏
页码：206 / 210
页数：5
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