Parameters and Depth of Penetration of Barkhausen Noise Analysis

Abstract

The Barkhausen noise analysis (BNA) method is based on a kind of "noise" generated by domain wall movements in ferromagnetic solid materials that exhibit hysteresis. These movements create flips which, in turn, create very small discontinuities along the hysteresis curve. The parameters that affect this Barkhausen noise are examined in this report together with the depth of penetration of the BNA method.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2010
Accession Number
ADA538247

Entities

People

  • Douglas J. Strand

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Background Noise
  • Composite Materials
  • Discontinuities
  • Distribution Functions
  • Domain Walls
  • Ferromagnetic Materials
  • Flux Density
  • Hysteresis
  • Magnetic Fields
  • Materials
  • Materials Laboratories
  • Materials Testing
  • Measurement
  • Metal Matrix Composites
  • Military Research
  • Test Methods

Readers

  • Materials Science and Engineering.
  • Oceanography.
  • Systems Analysis and Design