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

Nozomi Nanato; Satoru Murase; Seok Beom Kim

doi:10.1541/ieejfms.125.1069

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

Nozomi Nanato, Satoru Murase, Seok Beom Kim

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

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.

Translated title of the contribution	Time-Frequency Visualization of AE Signal using Wavelet Transform for Precise Measurement and Estimation
Original language	Japanese
Pages (from-to)	1069-1070
Number of pages	2
Journal	IEEJ Transactions on Fundamentals and Materials
Volume	125
Issue number	12
DOIs	https://doi.org/10.1541/ieejfms.125.1069
Publication status	Published - Dec 1 2005

Keywords

AE
wavelet transform
time-frequency visualization

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@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",

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day = "1",

doi = "10.1541/ieejfms.125.1069",

language = "Japanese",

volume = "125",

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journal = "IEEJ Transactions on Fundamentals and Materials",

issn = "0385-4205",

publisher = "The Institute of Electrical Engineers of Japan",

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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 -