Merjenje udarne sile na podlagi meritve pospeška : zaključna naloga Razvojno raziskovalnega programa I. stopnje Strojništvo
Drab, Jan
V prvem delu zaključne naloge smo obravnavali merjenje udarne sile s silomerom in pospeškomerom. Na udarnem kladivu sta bili hkrati nameščeni obe zaznavali. Da bi iz izmerjenega pospeška dobili ...impulz sile, smo morali določiti korekcijski faktor, s katerim je potrebno pospešek pomnožiti. Kladivo smo testirali s tremi udarnimi konicami različnih trdot in za vsako izračunali korekcijski faktor. Ugotovili smo, da je le-ta za vsako konico različen. Drugi del naloge obsega uporabo MEMS pospeškomera in primerjavo dobljenega signala s signalom profesionalnega referenčnega pospeškomera. Signal MEMS pospeškomera smo pridobili preko platforme Arduino, signal profesionalnega pospeškomera pa s programom LabView. Nato smo primerjali izrisana grafa obeh signalov in ugotovili, da pri MEMS senzorju pride do napake, potem ko pospešek doseže amplitudo. Tekom naloge smo določili faktorje, s katerimi moramo korigirati signal MEMS pospeškomera, da dobimo čim bolj natančen impulz sile. Za vse pridobljene signale smo naredili tudi Fourirerovo transformacijo in dobili sliko v frekvenčni domeni.
Type of material - undergraduate thesis
; adult, serious
Publication and manufacture - Ljubljana : [J. Drab], 2018
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