Faculty of Mechanical Engineering, Lj. (FSLJ)
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Spektralne komponente optičnega toka ob uporabi pulzno-širinske modulacije : zaključna naloga Univerzitetnega študijskega programa I. stopnje StrojništvoVelkavrh, Blaž, strojnikPoznavanje dinamskega odziva strukture je ključnega pomena pri razvoju in odkrivanju pomanjkljivosti že realiziranih izdelkov. Pri eksperimentalnem določanju dinamskega odziva je zaradi njegove ... natančnosti pogosta uporaba pospeškomera. Namesto pospeškomera se lahko kot brezdotično metodo uporabi hitro kamero, a je cena take kamere zelo visoka. V nalogi smo kot alternativo hitrim kameram predstavili in uporabili metodo za merjenje premikov s klasično kamero. V primerjavi s hitrimi kamerami je cena izvedbe metode zelo nizka, ločljivost slik pa bistveno višja. Metoda za zajem spektralnih komponent optičnega toka uporablja harmonično spreminjanje osvetlitve. Metodo smo delno spremenili - analogno krmiljenje svetlobnega vira smo nadomestili z digitalnim krmiljenjem s pomočjo pulzno-širinske modulacije. Z metodo smo izmerili amplitude nihanj vzbujane ploščice pri različnih frekvencah vzbujanja. Z zaporednimi meritvami pod enakimi pogoji smo potrdili delovanje metode, pri nižjih frekvencah vzbujanja pa tudi ponovljivost meritev.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [B. Velkavrh], 2018Language - slovenianCOBISS.SI-ID - 16362011
Author
Velkavrh, Blaž, strojnik
Other authors
Slavič, Janko, 1978-
Topics
diplomske naloge |
optični tok |
pulzno-širinska modulacija |
Lucas-Kanade |
fotogrametrija |
modalna analiza |
generiranje signala |
optical flow |
pulse-width modulation |
Lucas-Kanade |
photogrammetry |
modal analysis |
signal generation
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Velkavrh, Blaž, strojnik | ![]() |
Slavič, Janko, 1978- | 23010 |
Source: Personal bibliographies
and: SICRIS
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