By logarithmic differentiation of the measurement equation for the capacity of volumetric flow rate of the critical nozzle , reduced to the standard conditions, when it is on the primary calibration standard installation GET 118-2006, the dependence is obtained, permitting to evaluate the type B uncertainties, appearing in the measurement of all arguments of , according to their individual influence coefficients to final result. Analysis of individual items of obtained budget of uncertainties allows to outline a series of activities aimed at improving the accuracy of calibration works running on the primary standard installation. Involvement of the same required amount of statistical material and finding the standard type A uncertainty, caused by the sources of uncertainty that have random character, making it possible to evaluate the full range of uncertainties of the primary standard installation GET 118-2006.
эталон, критическое сопло, калибровка, измерение, оценивание неопределенностей, standard, critical nozzle, calibration, measurement, evaluation of measurement
1. A.P. Gerasimov, V.P. Ivanov, V.M. Krasavin, S.V. Rainchik, O.K. Semenova, Gosudarstvennyy pervichnyy etalon edinic ob'emnogo i massovogo rashodov gaza, Mir izmereniy,7 (2006).
2. A.P. Gerasimov, V.P. Ivanov, V.M. Krasavin, V.M. Lahov, S.V. Rainchik, O.K. Semenova, Oblast' primeneniya sopel Lavalya v rashodoizmeritel'noy tehnike, Izmeritel'naya tehnika, 4, S. 48 (2005).
3. D.A. Braslavskiy, V.V. Petrov. Tochnost' izmeritel'nyh ustroystv. Mashinostroenie, Moskva, 1976. 312 s.
4. Goryunova S.M., Hamraeva D.K., Sopin V.F. Organizaciya procedur attestacii i utverzhdeniya etalonov edinic velichin, ispol'zuemyh v sfere gosudarstvennogo regulirovaniya obespecheniya edinstva izmereniy // Vestnik Kazanskogo tehnologicheskogo universiteta, 16, S.236 (2012).
