Application of Wavelet Analysis to Eddy Current Testing for the Surface Fatigue Crack of Bolt Holes

Xiao Li Li; Jin Li Sun

doi:10.4028/www.scientific.net/AMR.986-987.1461

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 986-987Application of Wavelet Analysis to Eddy Current...

Application of Wavelet Analysis to Eddy Current Testing for the Surface Fatigue Crack of Bolt Holes

Abstract:

Eddy current testing is one of the five major routine nondestructive testing methods and it is convenient, fast and suitable for online detecting of the surface fatigue crack of bolt holes. However, the signals of eddy current testing are so weak that it is difficult to identify the signals. So more effective signal processing method must be adopted to deal with the weak signals. This paper used the wavelet analysis to process signals of the eddy current testing for the surface flaw of bolt holes. It can inhibit the noise and reinforce signal and make qualitative testing possible for quality evaluation of the surface fatigue crack of bolt holes.

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Periodical:

Advanced Materials Research (Volumes 986-987)

Pages:

1461-1465

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.986-987.1461

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Online since:

July 2014

Authors:

Xiao Li Li*, Jin Li Sun

Keywords:

Denoise, Eddy Testing, Nondestructive Testing, Wavelet Analysis

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