Some Aspects of Signal Processing for Nonlinear Pulse Ultrasonic Mixing Spectroscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F15%3A00531896" target="_blank" >RIV/60162694:G43__/15:00531896 - isvavai.cz</a>

Výsledek na webu

<a href="http://vavtest.unob.cz/registr" target="_blank" >http://vavtest.unob.cz/registr</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Some Aspects of Signal Processing for Nonlinear Pulse Ultrasonic Mixing Spectroscopy

Popis výsledku v původním jazyce

Principles of nonlinear ultrasonic mixing impulse spectroscopy (NUMIS) show great potential advantages in comparison with other nonlinear ultrasonic methods. It is first of all from the point of view of sensitivity and possibility of quick, simple and precise localization of a defect. This paper is focused on problems for improve a signal processing, because the sensitivity of nonlinear ultrasonic methods are limited on principle by various noise signals. The problem of sensitivity limits and connectedproblem of usable dynamic range is discussed in general. One of the important problems consists in optimisation of envelope shape of the exciting tone-bursts. The optimization criterion is maximum suppression of the spectrum of the excitation signal forthe frequency band detection of difference frequency. Next important task was directed to realisation of optimum digital filtration of asked signal with differential frequency and maximum rejection of excitation signals and other disturbi

Název v anglickém jazyce

Some Aspects of Signal Processing for Nonlinear Pulse Ultrasonic Mixing Spectroscopy

Popis výsledku anglicky

Principles of nonlinear ultrasonic mixing impulse spectroscopy (NUMIS) show great potential advantages in comparison with other nonlinear ultrasonic methods. It is first of all from the point of view of sensitivity and possibility of quick, simple and precise localization of a defect. This paper is focused on problems for improve a signal processing, because the sensitivity of nonlinear ultrasonic methods are limited on principle by various noise signals. The problem of sensitivity limits and connectedproblem of usable dynamic range is discussed in general. One of the important problems consists in optimisation of envelope shape of the exciting tone-bursts. The optimization criterion is maximum suppression of the spectrum of the excitation signal forthe frequency band detection of difference frequency. Next important task was directed to realisation of optimum digital filtration of asked signal with differential frequency and maximum rejection of excitation signals and other disturbi

Druh

D - Stať ve sborníku

CEP obor

KA - Vojenství

OECD FORD obor

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Projekt

<a href="/cs/project/TA04010165" target="_blank" >TA04010165: Zařízení pro nedestruktivní testování nelineární metodou</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

VIIIth International workshop NDT in Progress Proceedings

ISBN

978-80-214-5262-6

ISSN

1435-4934

e-ISSN

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Počet stran výsledku

8

Strana od-do

57-64

Název nakladatele

Czech Society for NDT

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

12. 10. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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