Research on weak signal detection technique for electromagnetic ultrasonic inspection system

Lei Kang; Wujun Mi; Chao Lv; Shujuan Wang

doi:10.1109/ICIEA.2008.4582946

Research on weak signal detection technique for electromagnetic ultrasonic inspection system

Lei Kang^*, Wujun Mi, Chao Lv, Shujuan Wang

^*Corresponding author for this work

School of Electrical and Mechanical Engineering

Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Electromagnetic acoustic transducers (EMATs) are very sensitive to surrounding noise while their transduction efficiency is rather poor. Consequently, ultrasonic signals received by EMATs are often contaminated by strong noise. To extract information of the received signals, a weak signal detection technique based on moving average, cross-correlation and self-correlation methods has been proposed. Crack signals obtained by an electromagnetic ultrasonic inspection system are processed by this cross-and-self-correlation detection technique. Feasibility and efficiency of the proposed technique are verified by experiment results with high reproducibility. By combining cross-correlation and self-correlation detection methods, this technique possesses a much stronger capability of weak signal detection than applying them individually.

Original language	English
Title of host publication	2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2394-2399
Number of pages	6
ISBN (Print)	9781424417179
DOIs	https://doi.org/10.1109/ICIEA.2008.4582946
Publication status	Published - 1 Aug 2008
Event	2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008 - Singapore, Singapore Duration: 3 Jun 2008 → 5 Jun 2008

Publication series

Name	IEEE ICIEA Proceedings
Publisher	IEEE
ISSN (Print)	2156-2318
ISSN (Electronic)	2158-2297

Conference

Conference	2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008
Country/Territory	Singapore
City	Singapore
Period	3/06/08 → 5/06/08

Access to Document

10.1109/ICIEA.2008.4582946

Cite this

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title = "Research on weak signal detection technique for electromagnetic ultrasonic inspection system",

abstract = "Electromagnetic acoustic transducers (EMATs) are very sensitive to surrounding noise while their transduction efficiency is rather poor. Consequently, ultrasonic signals received by EMATs are often contaminated by strong noise. To extract information of the received signals, a weak signal detection technique based on moving average, cross-correlation and self-correlation methods has been proposed. Crack signals obtained by an electromagnetic ultrasonic inspection system are processed by this cross-and-self-correlation detection technique. Feasibility and efficiency of the proposed technique are verified by experiment results with high reproducibility. By combining cross-correlation and self-correlation detection methods, this technique possesses a much stronger capability of weak signal detection than applying them individually.",

author = "Lei Kang and Wujun Mi and Chao Lv and Shujuan Wang",

year = "2008",

month = aug,

day = "1",

doi = "10.1109/ICIEA.2008.4582946",

language = "English",

isbn = "9781424417179",

series = "IEEE ICIEA Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "2394--2399",

booktitle = "2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008",

address = "United States",

note = "2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008 ; Conference date: 03-06-2008 Through 05-06-2008",

}

Kang, L, Mi, W, Lv, C & Wang, S 2008, Research on weak signal detection technique for electromagnetic ultrasonic inspection system. in 2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008. IEEE ICIEA Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 2394-2399, 2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008, Singapore, Singapore, 3/06/08. https://doi.org/10.1109/ICIEA.2008.4582946

Research on weak signal detection technique for electromagnetic ultrasonic inspection system. / Kang, Lei; Mi, Wujun; Lv, Chao et al.
2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008. Institute of Electrical and Electronics Engineers Inc., 2008. p. 2394-2399 (IEEE ICIEA Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Research on weak signal detection technique for electromagnetic ultrasonic inspection system

AU - Kang, Lei

AU - Mi, Wujun

AU - Lv, Chao

AU - Wang, Shujuan

PY - 2008/8/1

Y1 - 2008/8/1

N2 - Electromagnetic acoustic transducers (EMATs) are very sensitive to surrounding noise while their transduction efficiency is rather poor. Consequently, ultrasonic signals received by EMATs are often contaminated by strong noise. To extract information of the received signals, a weak signal detection technique based on moving average, cross-correlation and self-correlation methods has been proposed. Crack signals obtained by an electromagnetic ultrasonic inspection system are processed by this cross-and-self-correlation detection technique. Feasibility and efficiency of the proposed technique are verified by experiment results with high reproducibility. By combining cross-correlation and self-correlation detection methods, this technique possesses a much stronger capability of weak signal detection than applying them individually.

AB - Electromagnetic acoustic transducers (EMATs) are very sensitive to surrounding noise while their transduction efficiency is rather poor. Consequently, ultrasonic signals received by EMATs are often contaminated by strong noise. To extract information of the received signals, a weak signal detection technique based on moving average, cross-correlation and self-correlation methods has been proposed. Crack signals obtained by an electromagnetic ultrasonic inspection system are processed by this cross-and-self-correlation detection technique. Feasibility and efficiency of the proposed technique are verified by experiment results with high reproducibility. By combining cross-correlation and self-correlation detection methods, this technique possesses a much stronger capability of weak signal detection than applying them individually.

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U2 - 10.1109/ICIEA.2008.4582946

DO - 10.1109/ICIEA.2008.4582946

M3 - Conference contribution

AN - SCOPUS:51949102103

SN - 9781424417179

T3 - IEEE ICIEA Proceedings

SP - 2394

EP - 2399

BT - 2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008

Y2 - 3 June 2008 through 5 June 2008

ER -

Research on weak signal detection technique for electromagnetic ultrasonic inspection system

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