Local eddy current measurements in pulsed fields

被引：4

作者：

Espina-Hernandez, J. H. ^{[1
]}

Groessinger, R. ^{[3
]}

Hallen, J. M. ^{[2
]}

机构：

[1] IPN, ESIME, SEPI Elect, Mexico City 07738, DF, Mexico

[2] IPN, ESIQIE, Dept Ingn Met, Mexico City 07738, DF, Mexico

[3] Vienna Univ Technol, Inst Solid State Phys, A-1040 Vienna, Austria

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2008年 / 320卷 / 14期

关键词：

local measurements; eddy currents; point pick-up coil;

D O I：

10.1016/j.jmmm.2008.02.086

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work presents new eddy current measurements in pulsed fields. A commercial point pick-up coil is used to detect the induction signal along the radius of Cu and Al samples with cylindrical shape and diameters between 5 and 35 mm. Local eddy current measurements were performed on the surface of conducting materials due to the small dimensions of the coil. A simple electrical circuit, used as a model, is proposed to describe the local eddy current effect in pulsed fields. The proposed model allows to calculate the phase shift angle between the signal proportional to eddy currents and the applied external field in a pulsed field magnetometer. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：E300 / E303

页数：4

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