Document Type

Article

Publication Date

2014

Journal or Book Title

Journal of Applied Physics

Volume

115

Issue

8

First Page

083906

DOI

10.1063/1.4866195

Abstract

We derive a two parameter multi-exponential model to describe the frequency spectrum ofBarkhausen noise in bulk steel under high excitation rates and applied tensile stress. We show how the amplitude and shape of the frequency spectrum depend on two directly measurable quantities, Barkhausen voltage and effective magnetic permeability, respectively, and how these change with stress. By incorporating frequency and depth dependence components into our model, we provide a framework for identifying stress variations along depth, which can be used for the purposes of non-destructive characterization.

Comments

The following article appeared in Journal of Applied Physics 115 (2014): 083906 and may be found at http://dx.doi.org/10.1063/1.4866195.

Rights

Copyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Copyright Owner

American Institute of Physics

Language

en

File Format

application/pdf

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