izpis_h1_title_alt

Postopek za analizo reza narejenega z laserskim žarkom
SABADIN, MATEJ (Author), Mihelj, Matjaž (Mentor) More about this mentor... This link opens in a new window

.pdfPDF - Presentation file, Download (11,37 MB)
MD5: BD2BD46DE9FAC85EF3735CE3F0A921E2

Abstract
Diplomska naloga raziskuje možnost uporabe računalniškega algoritma za analizo reza laserskega žarka iz zajete slike testnega vzorca, kot enakovredno metodo analize ročni aplikativni metodi. Le-ta je priljubljena zaradi svoje enostavnosti in nizke cene, ampak ima tudi svoje slabosti, kot sta potrebno predznanje posameznika, ki opravlja analizo in subjektivnost interpretacije rezultatov. S pomočjo namensko razvitega algoritma za analizo reza laserskega žarka se je mogoče izogniti slabostim ročne analize, saj algoritem hitro in objektivno interpretira rezultate. V prvem poglavju je na kratko predstavljeno lasersko strukturiranje, lastnosti laserske svetlobe in delitev obstoječih metod za določitev položaja fokusa laserskega žarka. V drugem poglavju je podrobneje predstavljena aplikativna metoda analize in vpliv posameznih parametrov laserskega žarka ter parametrov strukturiranja na končni vzorec. Analiza z algoritmom je opisana v tretjem poglavju in poteka na sliki namensko zasnovanega testnega vzorca, ki omogoča določitev iskanih parametrov. Algoritem omogoča določitev grobe ocene položaja fokusa, natančno oceno položaja fokusa z oceno astigmatizma na materialu in najvišjo hitrost strukturiranja testnega materiala. Delovanje algoritma je bilo preizkušeno na več laserskih virih in rezultati so bili primerjani z rezultati ročnega aplikativnega pristopa v četrtem poglavju. Opravljeni so bili tudi testi ponovljivosti rezultatov analize z algoritmom, občutljivosti na jakost osvetlitve testnega vzorca, vpliv premika testnega materiala in vpliv hitrosti strukturiranja, oziroma ožganin na končni rezultat analize. Preko testiranja je bilo dokazano, da je analiza s pomočjo algoritma za analizo reza povsem primerljiva z metodo ročne analize.

Language:Slovenian
Keywords:lasersko strukturiranje, laserski žarek, analiza reza laserskega žarka, fokus laserskega žarka, astigmatizem, najvišja hitrost strukturiranja
Work type:Undergraduate thesis (m5)
Organization:FE - Faculty of Electrical Engineering
Year:2016
Views:986
Downloads:303
Metadata:XML RDF-CHPDL DC-XML DC-RDF
 
Average score:(0 votes)
Your score:Voting is allowed only to logged in users.
:
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Secondary language

Language:English
Title:Procedure for analysis of cut performed with laser beam
Abstract:
The thesis discusses the possibility for the use of a computer algorithm to perform laser cut analysis from the picture of a structured test sample, as an equivalent method to the classic manual applicative cut analysis. The applicative laser cut analysis is a popular method because of its simplicity and low cost, but it also has some drawbacks, such as experience requirements of the operator and subjective result interpretation. The mentioned drawbacks of the manual applicative method can be avoided with the use of the algorithm analysis, which was designed for this task. The algorithm analysis is a fast and objective process of interpreting results and it does not require a high level of experience from the operator. The first chapter describes laser structuring, laser light properties and existing methods of determining laser focus position. The applicative method of laser cut analysis and the influence of laser source and structuring parameters on the structured sample are described in the second chapter. The third chapter describes the algorithm analysis, which is performed on a picture of a specifically designed test sample. The test sample has a specific structure, from which the searched parameters values can be found. The algorithm can perform a rough beam focus position estimation, a fine beam focus estimation with astigmatism estimation and maximum structuring speed estimation. The algorithm was tested on multiple laser sources and the test results were compared with the results of the manual applicative method in the fourth chapter of the thesis. Additional testing was performed to assess the analysis repeatability, test sample lighting influence, material position change and structuring speed influence on the analysis results. Test results proved that the algorithm analysis is perfectly comparable to the manual applicative method results.

Keywords:laser structuring, laser beam, laser cut analysis, laser focus, astigmatism, maximum structuring speed

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back