A Practical Signal Progressing Method for Magnetic Flux Leakage Testing

Zhang Wei Ling; Wei Yong Cai; Si Hai Li; Chao Li

doi:10.4028/www.scientific.net/AMM.599-601.782

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 599-601A Practical Signal Progressing Method for Magnetic...

A Practical Signal Progressing Method for Magnetic Flux Leakage Testing

Abstract:

The magnetic flux leakage (MFL) testing, as a modern nondestructive testing technology, requires fast and accurate signal progressing methods. A practical signal progressing method for MFL testing was presented, especially for tank floor MFL testing. According to the FFT result of the original signal, a difference amplifier and a low-pass filter were designed in the hardware signal progressing. In the digital signal progressing, a numerical differential progress and an IIR band-pass filter were adopted. Experimental results show that the presented method could effectively eliminate noise. Defect depth measuring results show that, for the 8 mm thickness specimen, the maximum absolute error of depth is 0.23 mm, which means 2.8 % of the 8 mm thickness.

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Periodical:

Applied Mechanics and Materials (Volumes 599-601)

Pages:

782-785

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.599-601.782

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Online since:

August 2014

Authors:

Zhang Wei Ling*, Wei Yong Cai, Si Hai Li, Chao Li

Keywords:

Hardware Circuit, Magnetic Flux Leakage Testing, Signal Progressing, Tank Floor

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* - Corresponding Author

References

[1] V. P. Kurozaev, A. S. Bakunov, D. A. Kudryavtsev, Instrumentation for Testing Pipelines and Vessels, Russian Journal of Nondestructive Testing. 38 (2002) 826-828.

DOI: 10.1023/a:1023753725752

Google Scholar

[2] A. R. Ramirez, J. S. D. Mason, N. Pearson, Experimental study to differentiate between top and bottom defects for MFL tank floor inspections, NDT&E International. 42 (2009) 16-21.

DOI: 10.1016/j.ndteint.2008.08.005

Google Scholar

[3] N. Kasai, K. Sekine, and H. Maruyama, Non-destructive evaluation method for far-side corrosion type flaws in oil storage tank bottom floors using the, Journal of the Japan Petroleum Institute, 46 (2003) 126-132.

DOI: 10.1627/jpi.46.126

Google Scholar

[4] Z. Liu, Y. Kang, and X. Wu, Study on local magnetization of magnetic flux leakage testing for storage tank floors, Insight, 45 (2003) 328-331.

DOI: 10.1784/insi.45.5.328.52882

Google Scholar

[5] S. Mukhopadhyay, G. P. Srivastava, Characterization of metal loss defects from magnetic flux leakage signals with discrete wavelet transform, NDT&E International. 33 (2003) 57-65.

DOI: 10.1016/s0963-8695(99)00011-0

Google Scholar