20.500.12556/RUL-100841 Umerjanje merilnikov diferencialnega tlaka Calibration of differential pressure meters V zaključni nalogi je obravnavan proces umerjanja merilnikov diferencialnega tlaka z uporabo plina kot medija. Skozi nalogo so predstavljeni postopki in metode za umerjanje merilnikov tlaka. Postavljen merilni sistem omogoča umerjanje na povišanem linijskem tlaku. Umerjanje se je izvajalo pri treh različnih linijskih tlakih z namenom kontrole, ali bo tlak imel vpliv na umerjani merilnik. Ovrednotena je razširjena merilna negotovost z umerjanjem določenih merilnih pogreškov umerjanega merilnika. Rezultati so prikazani v grafih in tabelah ter so ustrezno analizirani in komentirani. Izkazalo se je, da povečan linijski tlak ni imel opaznega vpliva na uporabljen umerjani merilnik. This thesis describes the calibration process of differential pressure gas meters. Calibration procedures and methods are presented during this task. The measuring system that has been installed allows calibration of differential pressure meters at an increased line pressure. The calibration was carried out at three different line pressures, in order to check if the line pressure would have an impact on the calibrated meter. The expanded measurement uncertainty is evaluated. The results are shown in graphs and tables. They are also properly analysed and explained. It turned out that the increased line pressure had no impact on the calibrated meter used in the process. umerjanje diferencialni tlak linijski tlak merilna negotovost calibration differential pressure line pressure measurement uncertainty true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2018-04-18 08:45:38 2018-04-18 08:45:40 2023-11-29 13:16:45 0000-00-00 00:00:00 2018 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 204446 1569.pdf 1569.pdf 1 AEA4728C1272A094E327318935410528 2e174fb1d0c27ad8d8ae669c486cf1245bcb1ce5194c02cc97fd55b3b7419efe 1e67af20-a1b5-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=110644 Fakulteta za strojništvo 0 0 0