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Eddy Current Testing for Radiator Tubes Surrounded by Cooling Fins
Journal of Magnetics, Volume 16, Number 3, 30 Sep 2011, Pages 276-280
Shoichiro Nagata * (University of Miyazaki), Yoshiaki Tsubusa (TMEIC), Masato Enokizono (Oita University)
Abstract

This paper presents a non-destructive evaluation study on a radiator with cooling fins as a complex shaped
specimen. Radiator structures are used in various heat exchangers, such as automobiles, air conditioners and refrigerators. An eddy current testing method, namely multi-frequency excitation and spectrogram method
(MFES), was employed to detect a defect on the radiator tube surrounded by cooling fins. Overall, experimental results suggested that the influence of cooling fin is not as noticeable as that of the defect signals.


 

Keywords: multi-frequency excitation and spectrogram method; MFES; eddy current testing; radiator tube
DOI: http://dx.doi.org/10.4283/JMAG.2011.16.3.276
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