20.500.12556/RUL-92814 Umerjanje in ocena merilne zmogljivosti merilnika enosmerne napetosti in toka Calibration and evaluation of measuring performance for direct voltage and current meter V diplomski nalogi smo predstavili umerjanje digitalnega multimetra za merjenje enosmernega električnega toka in napetosti. Opredelili smo postopek umerjanja in obdelave rezultatov umerjanja. Izdelali smo nadzorni program, ki omogoča komunikacijo z digitalnim multimetrom ter obdelavo in shranjevanje podatkov. Umerjanje digitalnega multimetra smo izvedli pri različnih temperaturah z namenom, da ovrednotimo vpliv okoliške temperature na merilnik. Analizirali smo rezultate umerjanj in ovrednotili razširjeno merilno negotovost pri merjenju električne napetosti in toka. Izkazalo se je, da temperatura vpliva samo na meritve električnega toka. Ocenili smo tudi merilno zmogljivost digitalnega multimetra v umerjanem temperaturnem območju. In this diploma thesis the calibration of a digital multimeter for measurement of direct electrical voltage and current is presented. A calibration procedure and evaluation of the calibration results were defined. A control program that allows us to communicate with a digital multimeter and is also used for post-processing and storing of data was developed. The calibration of digital multimeter was carried out at different temperatures with intention to evaluate the influence of the ambient temperature. The results of calibration and evaluated the measurement uncertainty for measurement of electrical voltage and current were analysed. It was shown that the temperature influences only the measurement of electrical current. Also the measurement capability of the digital multimeter in the calibrated temperature range was evaluated. umerjanje digitalni multimeter električna napetost in tok merilna negotovost temperaturni vpliv merilna zmogljivost calibration digital multimeter voltage current measurement uncertanty temperature effect measurement capability true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2017-07-05 07:15:02 2017-07-05 07:15:06 2023-11-29 13:06:16 0000-00-00 00:00:00 2017 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 189549 514.pdf 514.pdf 1 55AABCC32BD5C5604BE3DCD6E4EE945A b1c90f5d3ac54fe7a639486e094f3ac6ab536ded3f348a96686a24147262c88a 547c520d-a1b3-11eb-a523-00155dcfd717 20.500.12556/rul/bdcf1b22-a172-4ed4-9771-d774f6602e43 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=100475 Fakulteta za strojništvo 0 0 0