Method for Processing Results of Magnetic Testing for Reliable Real-Time Detection of Critical Continuity Defects

Abstract—

Inverse problems of magnetostatics for continuity defects can be formulated in different ways. One can set the task of determining defects with high accuracy and resolution or limit the task to revealing several specified types of (“hazardous”) defects with varying degrees of probability. In this case, other real (“minor”) defects will be either skipped by the program or “replaced” by defects from among the ones specified. Minimizing the residual functional between experimental and calculated data is the main task when solving any inverse problems, both in real time and off-line. The paper considers an approach to calculating a simplified inverse problem in real time without accumulating experimental data bases.

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Funding

This work was carried out within the framework of the state order on topic “Diagnostics”, project no. АААА-А18-118020690196-3.

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Correspondence to A. N. Pechenkov.

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Pechenkov, A.N. Method for Processing Results of Magnetic Testing for Reliable Real-Time Detection of Critical Continuity Defects. Russ J Nondestruct Test 56, 1050–1055 (2020). https://doi.org/10.1134/S1061830920120074

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Keywords:

  • inverse problem of magnetostatics
  • pattern recognition methods
  • integral equation of magnetostatics
  • calculation of magnetic field
  • “continuity” defects
  • minimization problem
  • brute force method