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Eksperimentalno izboljšanje površine materialov s pomočjo plazme
Nosan, Simon (Author), Čepin, Marko (Mentor) More about this mentor... This link opens in a new window

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Abstract
V magistrskem delu se osredotočimo na čiščenje površin s pomočjo plazme. Plazma s površine odstrani vrhnji sloj nečistoč, vir za pripravo plazme pa pripravi potrebne pogoje za doseganje plazme. Na kratko je predstavljena zgodovina in uporaba plazme. Nato je predstavljena teorija površinske napetosti, ki je pomembna za dober oprijem nove snovi na obdelano površino. Za lažje razumevanje je opisano ozadje delovanja uporabljenih elementov, kot so vžigalna tuljava, kapacitivni panel in mosfet tranzistor. Razložen je princip merjenja visoke napetosti in uporaba le-tega ob izdelavi novega transformatorja. Sledi priprava eksperimentov. Razložen je prvi poskus, kjer je uporabljena vžigalna tuljava. Navedeni so uporabljeni elementi in laboratorijska oprema. Podrobno je razložena shema vezja in določanje lastnosti še nepoznanih elementov. Izmerjen je potek napetosti na visokonapetostni strani vžigalne tuljave. Podani so rezultati obdelave preizkušanca s plazmo in komentarji rezultatov poskusa. V drugem delu je največji poudarek na izdelavi novega transformatorja, ki je uporabljen kot zamenjava najšibkejšega člena iz prvega poskusa - vžigalne tuljave. Opisani so pripomočki, izdelava navitij in sestava transformatorja. Za boljšo učinkovitost je podan opis izdelave novega razelektritvenega panela. Sledi še komentar rezultatov drugega poskusa in izboljšav – površina se hitreje očisti ob uporabi močnejšega vira in površina je bolj čista ob daljši izpostavljenosti plazmi.

Language:Slovenian
Keywords:plazma, površinska napetost, vžigalna tuljava, planarni transformator, razelektritveni panel
Work type:Master's thesis/paper (mb22)
Organization:FE - Faculty of Electrical Engineering
Year:2016
Views:790
Downloads:433
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Secondary language

Language:English
Title:Improvement of the material surface by experiments with plasma
Abstract:
This master thesis is focused on plasma surface cleaning. Plasma removes upper layer of dirt from the surface, plasma source makes the right conditions for achieving plasma. That is followed by the history and use of plasma today. Next, the surface tension theory is shortly explained, which is important for good adhesion of new material to an existing one. For better understanding, used elements are described, such as ignition coil, capacitive panel and mosfet transistor. The principle of high voltage measuring is explained and its use is explaining when making the new transformer. That is followed by preparation for the experiments. Firstly, the experiment with the use of ignition coil is explained. All used elements are listed, including the lab equipment. The schematics of electric circuit is explained in details. Unknown characteristics of some elements are defined. Graphs of voltage are measured at the high voltage side of the ignition coil. Finally, the results of plasma surface cleaning are tested with a set of liquids with different surface tension. The second part of experimenting is focused on making a new transformer. The ignition coil was shown to be a weak link in the first experiment, so the new type of transformer was used in order to improve final results. The making of windings and assembling of transformer are explained. New discharge panel was made to improve the efficiency. All that is followed by comments of new results – the surface is cleaned faster if stronger plasma source cleaning device is used. The surface is cleaner if it is being exposed to plasma for longer period of time.

Keywords:plasma, surface tension, ignition coil, planar transformer, discharge panel

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