. "Differential Spectral Analysis of The Impact-Echo Signal"@en . "Diferen\u010Dn\u00ED spektr\u00E1ln\u00ED anal\u00FDza Impact-Echo sign\u00E1lu"@cs . "[9385A2D84CC0]" . "Vysok\u00E9 u\u010Den\u00ED technick\u00E9 v Brn\u011B" . "8"^^ . "I, P(GD102/09/H074)" . . . . "http://vavtest.unob.cz/registr" . "Nedestruktivn\u00ED testov\u00E1n\u00ED sluchovou anal\u00FDzou sign\u00E1lu odezvy testovan\u00E9ho t\u011Blesa na vybuzen\u00ED \u00FAderem pat\u0159\u00ED k nejstar\u0161\u00EDm defektoskopick\u00FDm metod\u00E1m. Modern\u00ED technika umo\u017E\u0148uje zvy\u0161ovat citlivost a objektivizovat tuto metodu NDT. Sou\u010Dasn\u00E1 forma t\u00E9to metody, prost\u00E1 spektr\u00E1ln\u00ED anal\u00FDza cel\u00E9ho z\u00E1znamu I-E sign\u00E1lu nevyu\u017E\u00EDv\u00E1 v\u0161echny informace v n\u011Bm obsa\u017Een\u00E9 a zbyte\u010Dn\u011B tak omezuje svou citlivost. Proto jsou realizov\u00E1ny r\u016Fzn\u00E9 detailn\u00ED anal\u00FDzy I-E sign\u00E1lu. \u010Cl\u00E1nek ukazuje p\u0159ehled dosavadn\u00EDch p\u0159\u00EDstup\u016F a mo\u017Enosti jejich zlep\u0161ov\u00E1n\u00ED, kter\u00E9 spo\u010D\u00EDvaj\u00ED p\u0159edev\u0161\u00EDm ve vyhodnocov\u00E1n\u00ED relativn\u00EDch \u010Dasov\u00FDch zm\u011Bn spektra v pr\u016Fb\u011Bhu odezvy." . . . . "978-80-214-4358-7" . . . . . . . "Nedestruktivn\u00ED testov\u00E1n\u00ED sluchovou anal\u00FDzou sign\u00E1lu odezvy testovan\u00E9ho t\u011Blesa na vybuzen\u00ED \u00FAderem pat\u0159\u00ED k nejstar\u0161\u00EDm defektoskopick\u00FDm metod\u00E1m. Modern\u00ED technika umo\u017E\u0148uje zvy\u0161ovat citlivost a objektivizovat tuto metodu NDT. Sou\u010Dasn\u00E1 forma t\u00E9to metody, prost\u00E1 spektr\u00E1ln\u00ED anal\u00FDza cel\u00E9ho z\u00E1znamu I-E sign\u00E1lu nevyu\u017E\u00EDv\u00E1 v\u0161echny informace v n\u011Bm obsa\u017Een\u00E9 a zbyte\u010Dn\u011B tak omezuje svou citlivost. Proto jsou realizov\u00E1ny r\u016Fzn\u00E9 detailn\u00ED anal\u00FDzy I-E sign\u00E1lu. \u010Cl\u00E1nek ukazuje p\u0159ehled dosavadn\u00EDch p\u0159\u00EDstup\u016F a mo\u017Enosti jejich zlep\u0161ov\u00E1n\u00ED, kter\u00E9 spo\u010D\u00EDvaj\u00ED p\u0159edev\u0161\u00EDm ve vyhodnocov\u00E1n\u00ED relativn\u00EDch \u010Dasov\u00FDch zm\u011Bn spektra v pr\u016Fb\u011Bhu odezvy."@cs . "Differential Spectral Analysis of The Impact-Echo Signal"@en . "2"^^ . "194545" . "Defektoskopie 2011-NDT for safety" . "2011-01-01+01:00"^^ . "Diferen\u010Dn\u00ED spektr\u00E1ln\u00ED anal\u00FDza Impact-Echo sign\u00E1lu" . . "Brno" . . . "2"^^ . "Diferen\u010Dn\u00ED spektr\u00E1ln\u00ED anal\u00FDza Impact-Echo sign\u00E1lu"@cs . "G43" . . "Bajer, Josef" . "Ostrava" . "H\u00E1jek, Karel" . "RIV/60162694:G43__/11:00449864!RIV12-MO0-G43_____" . "Diferen\u010Dn\u00ED spektr\u00E1ln\u00ED anal\u00FDza Impact-Echo sign\u00E1lu" . "RIV/60162694:G43__/11:00449864" . "NDT by aural analysis of impact response is part of the oldest NDT methods. The modern technologies enable to improve a sensitivity and objectivity of this method. Simply spectral analysis as the present form of this method didn\u2019t derive benefit from all information of the recorded signal and it limits the sensitivity. Therefore there are realized various detailed analysis of I-E signal. This paper shows a summary of this accesses and possibilities of their improving. They consist first of all in evaluation of relative time changes of frequency spectrum in the time of response."@en . "Impact echo; signal analysis; nonlinear spectroscopy"@en . .