Sizing of 3-D Surface Breaking Flaws from the Distribution of Leakage Field

  • Dorian Minkov
  • Tetsuo Shoji


The electrical methods for sizing of surface breaking flaws in conductive materials are divided in two groups: DC methods and AC methods. Most of these methods are based on potential drop techniques where electrical current passes inside the sample, and information about the sizes of the flaw is extracted from measurements of the potential drop between two electrodes which contact the surface of the sample.


Initial Approximation Theoretical Distribution Minimisation Procedure Flaw Parameter Minimisation Step 
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  1. 1.
    W. Lord, W. and L. Srinivasan. Review of Progress in Quantitative Nondestructive Evaluation, Plenum Press, New York (1984)Google Scholar
  2. 2.
    M. Katoh, S. Mukae, K. Nishio, and A. Masumoto, Simulation for estimating breadth and depth of defect in magnetic leakage flux testing method, Nondest Insp, 33: 59 (1984)Google Scholar
  3. 3.
    S. Mukae, M. Katoh, and K. Nishio, Investigation on quantification of defect and effect of factors affecting leakage flux density in magnetic leakage flux testing method, Nondest Insp, 37: 885 (1988)Google Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Dorian Minkov
    • 1
    • 2
  • Tetsuo Shoji
    • 1
  1. 1.Research Institute for Fracture TechnologyTohoku UniversitySendai 980Japan
  2. 2.Department of Electronic EngineeringUniversity of NatalDalbridgeSouth Africa

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