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  • Prezence metod ultrazvukového nedestruktivního testování (NDT) materiálů jsou založeny hlavně na analýze pružného odrazu vln, absorbce a interference. Ultrazvukové testování má některá praktická omezení, zvláště pro nehomogenní materiály. Nelineární ultrazvuková spektroskopie je vyvíjena jako nová cesta ke zlepšení NDT a nabízí některé nové možnosti pro NDT. Proto tento článek nabízí analýzy, principy, omezení a různé metody pro nelineární ultrazvukovou spektroskopii. Tyto metody jsou převážně založenyy na frekvenčních analýzách. Materiály s nepoškozenou struktůrou jsou v podstatě lineární v jejich odezvě, zatím co ten samý materiál, když je poškozen, se stává vysoce nelineárním. Ve spektrogramech je to reprezentováno generováním harmonických kmitočtůa postranních pásem. Experimentální výsledky jsou zde také ukázány. (cs)
  • Present ultrasonic non-destructive testing (NDT) methods of material are mainly based on analysis of elastic wave reflection, absorption and interference. The ultrasonic testing has some practical limitations, mainly for inhomogeneous materials. The nonlinear ultrasonic spectroscopy is evolved as a new way to improving the NDT and it offer some new possibilities for the NDT. Therefore this paper offers the analysis, principles, limitations and various methods for nonlinear ultrasonic spectroscopy. Methoods are mainly based on frequency analysis. Materials with undamaged structure are essentially linear in their response, while the same material, when damaged, becomes highly nonlinear. In spectrograms it's represented by harmonics and sideband generation. The first experimental results are also shown.
  • Present ultrasonic non-destructive testing (NDT) methods of material are mainly based on analysis of elastic wave reflection, absorption and interference. The ultrasonic testing has some practical limitations, mainly for inhomogeneous materials. The nonlinear ultrasonic spectroscopy is evolved as a new way to improving the NDT and it offer some new possibilities for the NDT. Therefore this paper offers the analysis, principles, limitations and various methods for nonlinear ultrasonic spectroscopy. Methoods are mainly based on frequency analysis. Materials with undamaged structure are essentially linear in their response, while the same material, when damaged, becomes highly nonlinear. In spectrograms it's represented by harmonics and sideband generation. The first experimental results are also shown. (en)
Title
  • ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY
  • Analýza a aplikace metod pro nelineární ultrazvukovou spektroskopii (cs)
  • ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY (en)
skos:prefLabel
  • ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY
  • Analýza a aplikace metod pro nelineární ultrazvukovou spektroskopii (cs)
  • ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY (en)
skos:notation
  • RIV/00216305:26220/05:PU50927!RIV06-GA0-26220___
http://linked.open.../vavai/riv/strany
  • 313-320
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA205/03/0071)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
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  • 512003
http://linked.open...ai/riv/idVysledku
  • RIV/00216305:26220/05:PU50927
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http://linked.open.../riv/klicovaSlova
  • ultrasonic, NDT, nonlinear ultrasonic spectroscopy (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [E28247A4A6E7]
http://linked.open...v/mistoKonaniAkce
  • Miskolc
http://linked.open...i/riv/mistoVydani
  • University of Miskolc, Miskolc, Hungary
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  • 5th International Conference of PhD Students
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
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http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Hájek, Karel
  • Sedlák, Petr
  • Hefner, Štěpán
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
http://purl.org/ne...btex#hasPublisher
  • University of Miskolc
https://schema.org/isbn
  • 963-661-678-7
http://localhost/t...ganizacniJednotka
  • 26220
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