AE信号の高精度測定・評価のためのウェーブレット変換による時間周波数可視化

Translated title of the contribution: Time-Frequency Visualization of AE Signal using Wavelet Transform for Precise Measurement and Estimation

Research output: Contribution to journalArticle

Abstract

AE (Acoustic Emission) techniques are universally used for investigating and watching the deformation and crack of various materials because they enable the non-destructive and continuous measurement. However, it is not always easy to clarify the main cause or mechanism of AE signal generation by its analysis and an AE sensor is generally vulnerable to the noise, and therefore advanced measurement and estimation techniques of AE signal are needed. In this paper, the authors present time-frequency visualization of AE signal using the wavelet transform. The proposed method enables especially precise measurement of the frequency band and generation time of AE signal and gives a clue in advanced AE techniques.
Original languageJapanese
Pages (from-to)1069-1070
Number of pages2
JournalIEEJ Transactions on Fundamentals and Materials
Volume125
Issue number12
DOIs
Publication statusPublished - Dec 1 2005

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Acoustic emissions
Wavelet transforms
Visualization
Acoustic noise
Frequency bands
Cracks
Sensors

Keywords

  • AE
  • wavelet transform
  • time-frequency visualization

Cite this

@article{533b48a368444b8bb734b64edaa124e5,
title = "AE信号の高精度測定・評価のためのウェーブレット変換による時間周波数可視化",
abstract = "AE (Acoustic Emission) techniques are universally used for investigating and watching the deformation and crack of various materials because they enable the non-destructive and continuous measurement. However, it is not always easy to clarify the main cause or mechanism of AE signal generation by its analysis and an AE sensor is generally vulnerable to the noise, and therefore advanced measurement and estimation techniques of AE signal are needed. In this paper, the authors present time-frequency visualization of AE signal using the wavelet transform. The proposed method enables especially precise measurement of the frequency band and generation time of AE signal and gives a clue in advanced AE techniques.",
keywords = "AE, ウェーブレット変換, 時間周波数可視化, AE, wavelet transform, time-frequency visualization",
author = "Nozomi Nanato and Satoru Murase and Kim, {Seok Beom}",
year = "2005",
month = "12",
day = "1",
doi = "10.1541/ieejfms.125.1069",
language = "Japanese",
volume = "125",
pages = "1069--1070",
journal = "IEEJ Transactions on Fundamentals and Materials",
issn = "0385-4205",
publisher = "The Institute of Electrical Engineers of Japan",
number = "12",

}

TY - JOUR

T1 - AE信号の高精度測定・評価のためのウェーブレット変換による時間周波数可視化

AU - Nanato, Nozomi

AU - Murase, Satoru

AU - Kim, Seok Beom

PY - 2005/12/1

Y1 - 2005/12/1

N2 - AE (Acoustic Emission) techniques are universally used for investigating and watching the deformation and crack of various materials because they enable the non-destructive and continuous measurement. However, it is not always easy to clarify the main cause or mechanism of AE signal generation by its analysis and an AE sensor is generally vulnerable to the noise, and therefore advanced measurement and estimation techniques of AE signal are needed. In this paper, the authors present time-frequency visualization of AE signal using the wavelet transform. The proposed method enables especially precise measurement of the frequency band and generation time of AE signal and gives a clue in advanced AE techniques.

AB - AE (Acoustic Emission) techniques are universally used for investigating and watching the deformation and crack of various materials because they enable the non-destructive and continuous measurement. However, it is not always easy to clarify the main cause or mechanism of AE signal generation by its analysis and an AE sensor is generally vulnerable to the noise, and therefore advanced measurement and estimation techniques of AE signal are needed. In this paper, the authors present time-frequency visualization of AE signal using the wavelet transform. The proposed method enables especially precise measurement of the frequency band and generation time of AE signal and gives a clue in advanced AE techniques.

KW - AE

KW - ウェーブレット変換

KW - 時間周波数可視化

KW - AE

KW - wavelet transform

KW - time-frequency visualization

U2 - 10.1541/ieejfms.125.1069

DO - 10.1541/ieejfms.125.1069

M3 - Article

VL - 125

SP - 1069

EP - 1070

JO - IEEJ Transactions on Fundamentals and Materials

JF - IEEJ Transactions on Fundamentals and Materials

SN - 0385-4205

IS - 12

ER -