Location of acoustic emission sources generated by air flow

Abstract:

:The location of continuous acoustic emission sources is a difficult problem of non-destructive testing. This article describes one-dimensional location of continuous acoustic emission sources by using an intelligent locator. The intelligent locator solves a location problem based on learning from examples. To verify whether continuous acoustic emission caused by leakage air flow can be located accurately by the intelligent locator, an experiment on a thin aluminum band was performed. Results show that it is possible to determine an accurate location by using a combination of a cross-correlation function with an appropriate bandpass filter. By using this combination, discrete and continuous acoustic emission sources can be located by using discrete acoustic emission sources for locator learning.

journal_name

Ultrasonics

journal_title

Ultrasonics

authors

Kosel T,Grabec I I,Muzic P

doi

10.1016/s0041-624x(99)00079-7

subject

Has Abstract

pub_date

2000-03-01 00:00:00

pages

824-6

issue

1-8

eissn

0041-624X

issn

1874-9968

pii

S0041-624X(99)00079-7

journal_volume

38

pub_type

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