Data processing method for thickness measurement using electromagnetic acoustic resonance

Hongjun Sun; Ryoichi Urayama; Tetsuya Uchimoto; Lalita Udpa; Toshiyuki Takagi; Kunihiro Kobayashi

doi:10.3233/SAEM190002

Data processing method for thickness measurement using electromagnetic acoustic resonance

Hongjun Sun, Ryoichi Urayama, Tetsuya Uchimoto, Lalita Udpa, Toshiyuki Takagi, Kunihiro Kobayashi

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

Abstract

The electromagnetic acoustic resonance (EMAR) method using an electromagnetic acoustic transducer (EMAT) has been proposed to perform pipe wall thickness measurements. However, in some parts of pipes, identification of the resonance frequency can be a difficult task. In this paper, a new data processing method called multiplication of n^th compression (MNC) is proposed to determine the resonance frequency. The performance of the MNC method is compared with that of the previously used autocorrelation function (ACF) and superposition of n^thcompression (SNC) methods in two experiments. Finally, a two-step data processing procedure for use in pipe wall thickness measurements is proposed. This procedure can improve the data processing accuracy.

Original language	English
Title of host publication	Electromagnetic Nondestructive Evaluation XXII
Editors	Antonello Tamburrino, Antonello Tamburrino, Yiming Deng
Publisher	IOS Press
Pages	1-6
Number of pages	6
ISBN (Electronic)	9781643680408
DOIs	https://doi.org/10.3233/SAEM190002
Publication status	Published - 2019 Nov 25
Event	23rd International Workshop on Electromagnetic Nondestructive Evaluation, ENDE 2018 - Detroit, United States Duration: 2018 Sep 9 → 2018 Sep 13

Publication series

Name	Studies in Applied Electromagnetics and Mechanics
Volume	44
ISSN (Print)	1383-7281
ISSN (Electronic)	1879-8322

Conference

Conference	23rd International Workshop on Electromagnetic Nondestructive Evaluation, ENDE 2018
Country	United States
City	Detroit
Period	18/9/9 → 18/9/13

Keywords

Autocorrelation function
Electromagnetic acoustic resonance
Multiplication of n compression
Superposition of n compression
Thickness measurement

ASJC Scopus subject areas

Mechanical Engineering
Electrical and Electronic Engineering

Access to Document

10.3233/SAEM190002

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Cite this

Sun, H., Urayama, R., Uchimoto, T., Udpa, L., Takagi, T., & Kobayashi, K. (2019). Data processing method for thickness measurement using electromagnetic acoustic resonance. In A. Tamburrino, A. Tamburrino, & Y. Deng (Eds.), Electromagnetic Nondestructive Evaluation XXII (pp. 1-6). (Studies in Applied Electromagnetics and Mechanics; Vol. 44). IOS Press. https://doi.org/10.3233/SAEM190002

Data processing method for thickness measurement using electromagnetic acoustic resonance. / Sun, Hongjun; Urayama, Ryoichi; Uchimoto, Tetsuya; Udpa, Lalita; Takagi, Toshiyuki; Kobayashi, Kunihiro.

Electromagnetic Nondestructive Evaluation XXII. ed. / Antonello Tamburrino; Antonello Tamburrino; Yiming Deng. IOS Press, 2019. p. 1-6 (Studies in Applied Electromagnetics and Mechanics; Vol. 44).

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

Sun, H, Urayama, R, Uchimoto, T, Udpa, L, Takagi, T & Kobayashi, K 2019, Data processing method for thickness measurement using electromagnetic acoustic resonance. in A Tamburrino, A Tamburrino & Y Deng (eds), Electromagnetic Nondestructive Evaluation XXII. Studies in Applied Electromagnetics and Mechanics, vol. 44, IOS Press, pp. 1-6, 23rd International Workshop on Electromagnetic Nondestructive Evaluation, ENDE 2018, Detroit, United States, 18/9/9. https://doi.org/10.3233/SAEM190002

Sun, Hongjun ; Urayama, Ryoichi ; Uchimoto, Tetsuya ; Udpa, Lalita ; Takagi, Toshiyuki ; Kobayashi, Kunihiro. / Data processing method for thickness measurement using electromagnetic acoustic resonance. Electromagnetic Nondestructive Evaluation XXII. editor / Antonello Tamburrino ; Antonello Tamburrino ; Yiming Deng. IOS Press, 2019. pp. 1-6 (Studies in Applied Electromagnetics and Mechanics).

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abstract = "The electromagnetic acoustic resonance (EMAR) method using an electromagnetic acoustic transducer (EMAT) has been proposed to perform pipe wall thickness measurements. However, in some parts of pipes, identification of the resonance frequency can be a difficult task. In this paper, a new data processing method called multiplication of nth compression (MNC) is proposed to determine the resonance frequency. The performance of the MNC method is compared with that of the previously used autocorrelation function (ACF) and superposition of nthcompression (SNC) methods in two experiments. Finally, a two-step data processing procedure for use in pipe wall thickness measurements is proposed. This procedure can improve the data processing accuracy.",

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