Spectral Analysis of Acoustic Emission Signals Using NI Systems

Author:

Qin Hong Wu1,Li Nian Feng2,Li Chun Feng3

Affiliation:

1. Changchun University

2. Jilin University

3. Changchun University of Science and Technology

Abstract

This paper describes a software and hardware analytical complex of spectral characteristics. The analysis complex includes the research of the signals with the ability to create a database for identification. Analysis of the spectral characteristics by using special instruments - spectrum analyzer. Presents the results of the evaluation of scientific and practical significance of the software developed. Spectral data multichannel analyzer spectrum was obtained with DAQ-device National Instruments.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

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3. ONO K, HUANG Q X. Pattern recognition analysis of acoustic emission signals [J]. Progress in Acoustic Emission Ⅶ, the Japanese Society for NDI, Japan, 1994, 69-78.

4. JEONG H, JANG Y S. Wavelet analysis of plate wave propagation in composite laminates [J]. Composite Structures, 2000, 49: 443-450.

5. DING Y, REUBEN R L, STEEL J A. A new waveform method for analysis for estimating AE wave arrival times using wavelet decomposition [J]. NDT&E International, 2004, 37(4): 279-290.

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