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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.
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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 |
Full Text: PDF |
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