Mjerenje odstupanja od pravocrtnosti i okomitosti 2D mjernog sustava

Tubić, Helena (2019) Mjerenje odstupanja od pravocrtnosti i okomitosti 2D mjernog sustava. = Straightness and squareness measurement on a 2D measurement system. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Katić, Marko.

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Abstract (Croatian)

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

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.

Item Type:	Thesis (Master's thesis (Bologna))
Uncontrolled Keywords:	Mjerenje; pravocrtnost; odstupanje od pravocrtnosti; okomitost; odstupanje od okomitosti; interferometar; autokolimator
Keywords (Croatian):	Measurement, straightness, straightness deviations, squareness, squareness deviations, interferometer, autocollimator
Subjects:	TECHNICAL SCIENCE > Mechanical Engineering
Divisions:	800 Department of Quality > 810 Chair of Precise Measurement and Quality
Date Deposited:	21 Mar 2019 09:31
Last Modified:	24 Oct 2019 14:31
URI:	http://repozitorij.fsb.hr/id/eprint/9256

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