Investigation on the method of suppress noise in the laser-EMAT testing based on wavelet threshold technology

Lei Cui; Yang Zhao; Peng Zhao; Jichang Sun; Zhongqing Jia

doi:10.3788/AOS201434.s112006

Investigation on the method of suppress noise in the laser-EMAT testing based on wavelet threshold technology

Lei Cui
, Yang Zhao^*
, Peng Zhao
, Jichang Sun
, Zhongqing Jia

^*Corresponding author for this work

Qilu University of Technology
Center of Nondestructive Testing Engineering of Shandong

Research output: Contribution to journal › Article › peer-review

Abstract

This work introduces the wavelet filter technique based on the soft threshold algorithm. The proposed method is applicable to the noise suppression during the detection process of the laser electromagnetic acoustic transducer (EMAT) technique. Experiments have been carried out on the 6016 aluminum plate, and the ultrasonic signal of surface defect has been processed by wavelet filter designed by Matlab. The results show that the technique has good prospects in the engineering applications of laser-EMAT testing.

Original language	English
Article number	s112006
Journal	Guangxue Xuebao/Acta Optica Sinica
Volume	34
DOIs	https://doi.org/10.3788/AOS201434.s112006
State	Published - 10 Sep 2014
Externally published	Yes

Keywords

Electromagnetic acoustic transducer
Laser technique
Laser ultrasonic
Nondestructive testing
Soft-threshold
Wavelet

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10.3788/AOS201434.s112006

Cite this

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title = "Investigation on the method of suppress noise in the laser-EMAT testing based on wavelet threshold technology",

abstract = "This work introduces the wavelet filter technique based on the soft threshold algorithm. The proposed method is applicable to the noise suppression during the detection process of the laser electromagnetic acoustic transducer (EMAT) technique. Experiments have been carried out on the 6016 aluminum plate, and the ultrasonic signal of surface defect has been processed by wavelet filter designed by Matlab. The results show that the technique has good prospects in the engineering applications of laser-EMAT testing.",

keywords = "Electromagnetic acoustic transducer, Laser technique, Laser ultrasonic, Nondestructive testing, Soft-threshold, Wavelet",

author = "Lei Cui and Yang Zhao and Peng Zhao and Jichang Sun and Zhongqing Jia",

year = "2014",

month = sep,

day = "10",

doi = "10.3788/AOS201434.s112006",

language = "英语",

volume = "34",

journal = "Guangxue Xuebao/Acta Optica Sinica",

issn = "0253-2239",

publisher = "Chinese Laser Press",

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T1 - Investigation on the method of suppress noise in the laser-EMAT testing based on wavelet threshold technology

AU - Cui, Lei

AU - Zhao, Yang

AU - Zhao, Peng

AU - Sun, Jichang

AU - Jia, Zhongqing

PY - 2014/9/10

Y1 - 2014/9/10

N2 - This work introduces the wavelet filter technique based on the soft threshold algorithm. The proposed method is applicable to the noise suppression during the detection process of the laser electromagnetic acoustic transducer (EMAT) technique. Experiments have been carried out on the 6016 aluminum plate, and the ultrasonic signal of surface defect has been processed by wavelet filter designed by Matlab. The results show that the technique has good prospects in the engineering applications of laser-EMAT testing.

AB - This work introduces the wavelet filter technique based on the soft threshold algorithm. The proposed method is applicable to the noise suppression during the detection process of the laser electromagnetic acoustic transducer (EMAT) technique. Experiments have been carried out on the 6016 aluminum plate, and the ultrasonic signal of surface defect has been processed by wavelet filter designed by Matlab. The results show that the technique has good prospects in the engineering applications of laser-EMAT testing.

KW - Electromagnetic acoustic transducer

KW - Laser technique

KW - Laser ultrasonic

KW - Nondestructive testing

KW - Soft-threshold

KW - Wavelet

UR - https://www.scopus.com/pages/publications/84907481975

U2 - 10.3788/AOS201434.s112006

DO - 10.3788/AOS201434.s112006

M3 - 文章

AN - SCOPUS:84907481975

SN - 0253-2239

VL - 34

JO - Guangxue Xuebao/Acta Optica Sinica

JF - Guangxue Xuebao/Acta Optica Sinica

M1 - s112006

ER -

Investigation on the method of suppress noise in the laser-EMAT testing based on wavelet threshold technology

Abstract

Keywords

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