20.500.12556/RUL-169840 The error curve of the volume-conversion devices and gas meters The accurate measurement of standard or normal volumes of natural gas relies on the precision of gas meters and volume conversion devices (VCDs) or correctors. VCDs are calibrated based on PTB – Prüfregeln: Band 20 or EN 12405–1. Utilizing Experimental Design Theory, we can predict the error curve of volume correctors fc as a function of absolute pressure and temperature. The gas meters are usually calibrated at the working pressure of natural gas at different flow rates according to the PTB – Prüfregeln: Band 30. By applying the principles of Experimental Design Theory, we were able to determine the error curve fV of a gas meter as a function of both flow rate and absolute pressure. The standard error of the estimate SEE serves as the measure to evaluate the suitability of approximating the error curve of volume correctors and gas meters. The proposed testing procedure can be automated for increased efficiency. volume conversion devices (corrector) gas meters standard error of estimate measurement uncertainty naprave za pretvorbo prostornine (korektorji) plinomeri merilni postopek standardna napaka ocene merilna negotovost true false true Angleški jezik Slovenski jezik Članek v reviji 2025-06-12 11:49:35 2025-06-12 11:49:39 2025-06-13 04:33:43 0000-00-00 00:00:00 2025 0 0 6 str. [article no.] 101538 Vol. 38 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621 2665-9174 10.1016/j.measen.2024.101538 239135747 https://www.sciencedirect.com/science/article/pii/S2665917424005142 1 103cd889-4771-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=211564 RAZ_Cimerman_Franc_2025.pdf RAZ_Cimerman_Franc_2025.pdf 1 21A5A7FF5A9CB61C37746E7C814682F0 9ae356bff0499d8a30629ef86b944cfe2029b3985ed58790eba309546c75de44 a24460c5-4771-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=211565 Fakulteta za strojništvo 0 0 0