Low temperature, high frequency permeability of Metglas 2714A and its potential for use as a core material for EMI filters

We report the measurement of the relative permeability of Metglas 2714A at 4.2 K temperature and at frequencies up to 1 MHz. We find that at ∼300 kHz, the real part of the relative permeability begins to drop towards unity, while the magnitude of the imaginary part increases. Our data can be used to...

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Bibliographic Details
Published inCryogenics (Guildford) Vol. 47; no. 5; pp. 279 - 281
Main Authors Hutzler, Nicholas R., Penanen, Konstantin I., Chui, Talso C.P.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.05.2007
Elsevier
Subjects
Applied sciences
Cryogenics
EMI filter
Energy
Energy. Thermal use of fuels
Exact sciences and technology
High-permeability
Magnetic material
Refrigerating engineering. Cryogenics. Food conservation
EMI filter
Magnetic material
Cryogenics
High-permeability
High temperature
High frequency
Low temperature
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Summary:We report the measurement of the relative permeability of Metglas 2714A at 4.2 K temperature and at frequencies up to 1 MHz. We find that at ∼300 kHz, the real part of the relative permeability begins to drop towards unity, while the magnitude of the imaginary part increases. Our data can be used to design transformers and EMI filters for low temperature applications.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0011-2275
1879-2235
DOI:10.1016/j.cryogenics.2007.03.004