Mjerenje odstupanja od pravocrtnosti i okomitosti 2D mjernog sustava

master's thesis

• Title (english): Straightness and squareness measurement on a 2D measurement system
• Author: Helena Tubić
• Mentor: Marko Katić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2019-03-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U ovom radu utvrđena su odstupanja od pravocrtnosti i okomitosti dviju preciznih vodilica, smještenih na optičkom stolu u Laboratoriju za precizna mjerenja dužina na Fakultetu strojarstva i brodogradnje. U današnje doba, točna i precizna mjerenja vrlo su bitna u svim granama industrije. Zahtjevi industrije sve su veći te su poboljšanja mjernih alata neizbježna. U uvodnom dijelu rada opisane su tolerancije oblika i položaja, s posebnim naglaskom na pravocrtnosti i okomitost te su objašnjeni mjerni alati koji se koriste u radu.
U eksperimentalnom dijelu rada, za mjerenjasu upotrijebljena dva različita mjerna alata: autokolimator i laserski mjerni sustav, odnosno interferometar. Mjerenja su ponovljena nekoliko puta, kroz vremenski period od nekoliko mjeseci, kako bi se kvalitetno mogla izraziti preciznost i stabilnost vođenja. Tijekom izvođenja mjerenja, utvrđeno je da pod u laboratoriju nije dovoljno krut, te je zbog toga u radu definiran i koliki utjecaj ta nedovoljna krutost poda ima na rezultate mjerenja.

Abstract (english)

In this paper, straightness and squareness deviations of the two guides, located on the optical table in the Laboratory for precision length measurement at the Faculty of Mechanical Engineering and Naval Architecture, will be measured. In today’s world, accurate measurements are very important in all branches of the industry. Industry requirements are increasing and improvements in measuring tools are inevitable. The introductory part of the paper describes the tolerances of shape and position, with particular emphasis on straightness and squareness, and the measurement tools used in the work are explained. In the experimental part of the work, two different measuring tools were used for the measurement: autocollimator and laser measuring system, interferometer. Measurements were repeated several times over a period of several months, in order to qualitatively express the precision and stability of the guidance. During the measurement, it was found that the floor in the laboratory was not rigid enough and therefore the paper tries to find out how much impact the floor stiffness has on the measurement results.

• Keywords: Mjerenje; pravocrtnost; odstupanje od pravocrtnosti; okomitost; odstupanje od okomitosti; interferometar; autokolimator
• Keywords (english): Measurement; straightness; straightness deviations; squareness; squareness deviations; interferometer; autocollimator
• Language: croatian
• URN:NBN: urn:nbn:hr:235:437008
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-24 13:07:34