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M-H loop tracer based on digital signal processing for low frequency characterization of extremely thin magnetic wires.

Authors
  • Butta, M
  • Infante, G
  • Ripka, P
  • Badini-Confalonieri, G A
  • Vázquez, M
Type
Published Article
Journal
Review of Scientific Instruments
Publisher
American Institute of Physics
Publication Date
Aug 01, 2009
Volume
80
Issue
8
Pages
83906–83906
Identifiers
DOI: 10.1063/1.3206264
PMID: 19725666
Source
Medline
License
Unknown

Abstract

A high-sensitivity ac hysteresis loop tracer has been developed to measure the low frequency hysteresis loop of soft magnetic materials. It has been applied successfully to characterize straight pieces of amorphous glass-covered microwires with metallic nucleus down to 1.5 microm thick. Based on the electromagnetic induction law, the proposed design is extremely simple and exploits the capabilities of commercially available data acquisition cards together with digital signal processing in order to achieve high-sensitivity without the need of expensive analog equipment.

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