Document Type

Article

Publication Date

2014

Journal or Book Title

Journal of Applied Physics

Volume

115

Issue

17

First Page

17E51

DOI

10.1063/1.4864438

Abstract

The effects of design parameters for optimizing the performance of sensors for magneticBarkhausen emission measurement are presented. This study was performed using finite element analysis. The design parameters investigated include core material, core-tip curvature, core length, and pole spacing. Considering a combination of permeability and saturation magnetization, iron was selected as the core material among other materials investigated. Although a flat core-tip would result in higher magnetic flux concentration in the test specimen, a curved core-tip is preferred. The sensor-to-specimen coupling is thereby improved especially for materials with different surface geometries. Smaller pole spacing resulted in higher flux concentration.

Comments

The following article appeared in Journal of Applied Physics 115 (2014): 17E512 and may be found at http://dx.doi.org/10.1063/1.4864438.

Copyright Owner

American Institute of Physics

Language

en

File Format

application/pdf

Share

COinS