Experimental study of electromagnetic emission signals generated by crack generation in composite materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F08%3APU77366" target="_blank" >RIV/00216305:26220/08:PU77366 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Experimental study of electromagnetic emission signals generated by crack generation in composite materials

Original language description

The formation of a crack is accompanied by the generation of an electromagnetic field. A differential equation was derived and solved to describe the transformation of the field parameters into an electric signal, provided capacitive sensors are used. Inthe next stage, an analysis of spurious external electromagnetic and acoustic fields was carried out and measures to suppress their effects were designed. The issue of amplifying extremely low electromagnetic signals generated during the crack formationwas dealt with, too. The mentioned analyses resulted in the design of a method to detect and evaluate electromagnetic emission (EME) signals and acoustic emission (AE) signals, which accompany mechanical stressing of materials and structures. Based on the results of such analyses, an automated double-channel measuring apparatus was used for signal data acquisition, saving and processing. The operation of the apparatus was successfully tested by processing a large set of measurement resu

Czech name

Experimentální studium signálů elektromagnetické emise generovaných při vzniku trhlin v kompozitních materiálech

Czech description

The formation of a crack is accompanied by the generation of an electromagnetic field. A differential equation was derived and solved to describe the transformation of the field parameters into an electric signal, provided capacitive sensors are used. Inthe next stage, an analysis of spurious external electromagnetic and acoustic fields was carried out and measures to suppress their effects were designed. The issue of amplifying extremely low electromagnetic signals generated during the crack formationwas dealt with, too. The mentioned analyses resulted in the design of a method to detect and evaluate electromagnetic emission (EME) signals and acoustic emission (AE) signals, which accompany mechanical stressing of materials and structures. Based on the results of such analyses, an automated double-channel measuring apparatus was used for signal data acquisition, saving and processing. The operation of the apparatus was successfully tested by processing a large set of measurement resu

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GA103%2F06%2F0708" target="_blank" >GA103/06/0708: Acoustic and electromagnetic emission in materials research</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Measurement Science and Technology

ISSN

0957-0233

e-ISSN

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Volume of the periodical

20

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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