Development of magnetic eddy current testing techniques | Zendy

Toyokazu Tada | Zendy; Hidehiko Suetsugu | Zendy

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Development of magnetic eddy current testing techniques

Author(s) -

Toyokazu Tada,

Hidehiko Suetsugu

Publication year - 2017

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.4974699

Subject(s) - eddy current , eddy current testing , electromagnetic coil , yoke (aeronautics) , heat exchanger , magnetic field , mechanical engineering , materials science , computer science , current (fluid) , nondestructive testing , nuclear engineering , acoustics , nuclear magnetic resonance , control system , electrical engineering , physics , engineering , fly by wire , quantum mechanics

IRIS (Internal Rotary Inspection System) has become a major maintenance inspection technique for the heat exchanger and reactor tubes. It is known that IRIS has a high precision of evaluation thickness, however there are a few disadvantages, such as slow inspection speed. Therefore, we have developed a magnetic eddy current flaw testing technique which combines a magnetic array forming a strong magnetic field, 4 coil structures for controlling the generation area of the eddy currents, and a desorption yoke structure to control the magnetizing force. In this presentation, details of this technique and practical application will be elaborated.

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