Data processing method for thickness measurement using electromagnetic acoustic resonance

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

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトルElectromagnetic Nondestructive Evaluation XXII
編集者Antonello Tamburrino, Antonello Tamburrino, Yiming Deng
出版社IOS Press
ページ1-6
ページ数6
ISBN(電子版)9781643680408
DOI
出版ステータスPublished - 2019 11 25
イベント23rd International Workshop on Electromagnetic Nondestructive Evaluation, ENDE 2018 - Detroit, United States
継続期間: 2018 9 92018 9 13

出版物シリーズ

名前Studies in Applied Electromagnetics and Mechanics
44
ISSN(印刷版)1383-7281
ISSN(電子版)1879-8322

Conference

Conference23rd International Workshop on Electromagnetic Nondestructive Evaluation, ENDE 2018
CountryUnited States
CityDetroit
Period18/9/918/9/13

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering

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