20.500.12556/DKUM-36606-f483416c-ca35-4fad-4621-84f173b7dde9 Zagotavljanje ustrezne kakovosti meritev pri nadzoru proizvodnega procesa sestavnega dela kompresorja ASSURANCE OF PROPER MEASUREMENT QUALITY IN CONTROLLING THE PRODUCTION PROCESS OF A COMPRESSOR COMPONENT V prvi polovici predstavljenega magistrskega dela sta opisani teorija pogreškov ter merilna negotovost, druga pa najprej vsebuje opis obdelave cilindra na bloku kompresorja in način merjenja obravnavanih dimenzij oziroma oblik, čemur sledijo eksperimentalne meritve s pripadajočimi rezultati. Cilj magistrske naloge je, da z izvedbo eksperimentalnih meritev dokaže sprejemljivost postopka merjenja premera cilindra in merjenja valjnosti cilindra. Po predhodno določenem protokolu so se eksperimentalne meritve premera cilindra izvedle na pnevmatskem merilnem stroju Stotz, meritve valjnosti pa na merilnem stroju Hommel. Statistična obdelava podatkov je pokazala na slabo ponovljivost meritve kalibracijskih obročev naprave Stotz. Po teoriji je bila izračunana tudi skupna merilna negotovost meritve premera cilindra, izračun pa je pokazal, da s trenutnim načinom merjenja ne moremo z veliko verjetnostjo zagotavljati točnosti meritev. Sprejemljivost postopka meritve valjnosti je bila dokazana s primerjalnimi meritvami, in sicer smo valjnost istega cilindra izmerili na dveh različnih koordinatnih merilnih strojih Zeiss ter na obravnavanem merilnem stroju Hommel. Po primerjavi podatkov, dobljenih iz meritev, smo ugotovili, da je postopek meritve valjnosti na stroju Hommel sprejemljiv. In the first half of the M.A. thesis the theory of errors and measurement uncertainty are described. The second half contains a description of the treatement of the cylinder on the compressor block and the way of measuring the treated dimensions and shapes, followed by experimental measurements with the belonging results. The objective of the thesis is to prove the acceptability of the procedure of measuring the cylinder's diameter and measuring the cylinder's cylindricity. According to the previously determined protocol, experimental measurements of the cylinder’s diameter were carried out on the pneumatic measuring instrument Stotz, and the cylindricity measurements were carried out on the instrument Hommel. Statistical treatment of data showed a poor measurement repetition of the Stotz instrument’s calibration rings. The common measurement uncertainty of the cylinder’s diameter measurement was also calculated according to the theory, and the calculation showed that measurement accuracy cannot be guaranteed with the current way of measuring. Acceptability of the procedure of the cylindricity measurement was proven with comparative measurements – cylindricity of the same cylinder was measured on two different coordinate measuring instruments Zeiss and on the treated measuring instrument Hommel. After comparing the data gained with the measurements it was established that the procedure of the cylindricity measurement on the instrument Hommel is acceptable. merilna negotovost standardni odmik merilni pogrešek meritev premer valjnost krožnost toleranca pnevmatska merilna naprava measurement uncertainty standard deviation measuring error measurement diameter cylindricity roundness tolerance pneumatic measuring instrument true true false [B. Ačko] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2012-06-17 17:12:51 2012-06-29 13:17:56 2023-08-16 14:40:43 2021-04-15 03:48:10 2012 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 531.714.08:621.542(043.2) 16970262 URN:SI:UM:DK:UKXCBVWX MAG_Vranicar_Tilen_2012.pdf MAG_Vranicar_Tilen_2012.pdf 1 63C0C674F31A28D1E5E8BF34920FAC25 ca290396e1ea20a4310e83ef416d2fd30624b311e8cd57506b9996f47c1cf1ca 1653eb10-7c08-11eb-bb7a-00155d0001ca 20.500.12556/dkum/33463533-6381-459b-b54b-691966a09802 https://dk.um.si/Dokument.php?lang=slv&id=48093 Fakulteta za strojništvo 0 0 0