20.500.12556/RUL-131487 Temperaturno ovrednotenje prototipa za umerjanje sevalnih termometrov Temperature evaluation of the prototype for calibration of radiation thermometers V magistrskem delu s pomočjo izračunane korekcije in merilne negotovosti ovrednotim prototip za umerjanje sevalnih termometrov. V prvem delu naloge opišem fizikalno ozadje, kjer predstavim osnovne zakonitosti sevalne termometrije. Pri tem ugotovim, da obstaja več dejavnikov, ki bodo v neidealnih razmerah merjenja doprinesli k merilnim pogreškom. V drugem delu magistrskega dela predstavim postavitev merilnega okolja, predstavim merilno opremo in njene karakteristike ter postopek izvajanja meritev. Sledi ocena virov sistematičnih pogreškov in merilnih negotovosti, ki so lastni merilnemu okolju. Ocenjene vire merilnih pogreškov analiziramo in ocenimo. Izračunamo korekcijo in skupno merilno negotovost za analizirani prototip za umerjanje sevalnih termometrov glede na temperaturo, pri kateri izvajamo meritve, in glede na odmik od središča plošče kalibratorja, pri katerem so izvedene meritve. Vrednosti skupne korekcije znašajo do 7 °C, razširjene skupne merilne negotovosti pa do 8 °C. Ugotavljam, da v splošnem kalibrator v trenutni fazi razvoja ni primeren za izvajanje kalibracij, razen v posebnih primerih. In this master’s thesis, I calculated given correction and measurement uncertainty to evaluate the prototype for calibration of radiation thermometer. In the first part of the thesis, I describe the physical background, presenting the fundamental laws of radiation thermometry. In doing so, I find that several factors will contribute to measurement errors in non-ideal measurement conditions. In the second part of the master’s thesis, I present the layout of the measuring environment, the measuring equipment and its characteristics, and the procedure for performing measurements. An assessment of the sources of systematic errors and measurement uncertainties inherent in the measurement environment follows. We analyze and evaluate the estimated sources of measurement errors. Then we calculate the correction and total measurement uncertainty for the analyzed prototype for the calibration of radiation thermometers concerning the temperature at which we perform the measurements and concerning the deviation from the center of the calibrator plate at which we perform the measurements. Total correction values are up to 7 °C, extended total measurement uncertainties up to 8 °C. I note that, in general, the calibrator is not suitable for performing calibrations at the current stage of development, except in special cases. ploščni IR kalibrator sevalni termometer sledljivost kalibracija merilna negotovost flat plate IR calibrator radiation thermometer traceability calibration measurement uncertainty true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2021-09-28 12:15:00 2021-09-28 12:15:04 2022-09-10 04:11:58 0000-00-00 00:00:00 2021 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 58181 78281731 Dolensek_Valerija_-_Temperaturno_ovrednotenje_prototipa_za_umerjanje_sevalnih_termometrov.pdf Dolensek_Valerija_-_Temperaturno_ovrednotenje_prototipa_za_umerjanje_sevalnih_termometrov.pdf 1 BC1257E3035C95FD74C693F917CF223D 329abee9d7d2800e3325cdc16533c1891af1bc27e2266fe759af84aa7050af04 ab03e460-2044-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=148831 Fakulteta za elektrotehniko 0 0 0