Acta Optica Sinica, Volume. 34, Issue s1, 112006(2014)

Investigation on the Method of Suppress Noise in the Laser-EMAT Testing Based on Wavelet Threshold Technology

Cui Lei1、*, Zhao Yang2, Zhao Peng2, Sun Jichang2, and Jia Zhongqing2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    References(11)

    [1] [1] M Vaclav, S Radislav, S Stanislav, et al.. Signal-to-noise ratio enhancement based on wavelet filtering in ultrasonic testing [J]. Ultrasonics, 2009, 49(8): 752-759.

    [2] [2] S Mirko, C Valentina, C Sivia, et al.. Pre-processing of data coming from a laser-EMAT system for non-destructive testing of steel slabs [J]. ISA Transactions, 2012, 51(1): 181-188.

    [3] [3] R Ribichini, F Cegla, P B Nagy, et al.. Experimental and numerical evaluation of electromagnetic acoustic transducer performance on steel materials [J]. NDT & E International, 2012, 45(1): 32-38.

    [4] [4] Zhao Yang, Guo Rui, Song Jiangfeng, et al.. Investigation on the method of suppress noise in the laser-EMAT testing based on adaptive filter technology [J]. Nondestructive Testing, 2013, 35(6): 29-31.

    [5] [5] X Y Chen, X X Song, F Qi, et al.. Signal matching wavelet for ultrasonic flaw detection in high background noise [J]. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2011, 58(4): 1-12.

    [6] [6] Li Shixin, Liu Luyuan. The study of denoising through wavelet shrinkage [J]. Chinese Journal of Scientific Instrument, 2002, 23(3): 478-479.

    [7] [7] Cui Jintai. An Introduction to Wavelets [M]. Xi′an: Xi′an Jiaotong University Press, 1995. 24-26.

    [8] [8] S P Song, P W Que. Wavelet based noise suppression technique and its application to ultrasonic flaw detection [J]. Ultrasonics, 2006, 44(2): 752-759.

    [9] [9] Y Zhao, Z Q Jia, R Guo, et al.. A novel laser-EMAT system for noncontact testing metal materials [J]. Applied Mechanics and Materials, 2013, 281: 422-425.

    [10] [10] Y Zhao, S Liu, R Guo, et al.. Hybrid laser-EMAT system for non-destructive testing continuous casting billet [J]. Chin Opt Lett, 2013, 11(s2): s21103.

    [11] [11] Sun Jihua, Zhao Yang, Song Jiangfeng, et al.. Testing the defect of rail with laser-EMA ultrasonic method [J]. J Optoeletronics·Laser, 2014, 25(1): 141-146.

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    Cui Lei, Zhao Yang, Zhao Peng, Sun Jichang, Jia Zhongqing. Investigation on the Method of Suppress Noise in the Laser-EMAT Testing Based on Wavelet Threshold Technology[J]. Acta Optica Sinica, 2014, 34(s1): 112006

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    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: Dec. 1, 2013

    Accepted: --

    Published Online: Jun. 24, 2014

    The Author Email: Cui Lei (cuil@sdas.org)

    DOI:10.3788/aos201434.s112006

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