Some Aspects of Signal Processing for Nonlinear Pulse Ultrasonic Mixing Spectroscopy

Result code in 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>
Result on the web
<a href="http://vavtest.unob.cz/registr" target="_blank" >http://vavtest.unob.cz/registr</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Some Aspects of Signal Processing for Nonlinear Pulse Ultrasonic Mixing Spectroscopy
Original language description
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
Czech name
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Czech description
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Project
<a href="/en/project/TA04010165" target="_blank" >TA04010165: Device for non-destructive testing by non-linear method</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
VIIIth International workshop NDT in Progress Proceedings
ISBN
978-80-214-5262-6
ISSN
1435-4934
e-ISSN
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Number of pages
8
Pages from-to
57-64
Publisher name
Czech Society for NDT
Place of publication
Praha
Event location
Praha
Event date
Oct 12, 2015
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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