METHOD FOR METROLOGICAL CERTIFICATION OF FLOWRATE METERING SYSTEMS Russian patent published in 2003 - IPC

FIELD: measuring processes and apparatuses. SUBSTANCE: method comprises steps of passing flow of working fluid with fixed value of flowrate through each of flowrate meters connected mutually in parallel; comparing readings of first flowrate meter with reference value for certifying desired flowrate meter; certifying remaining flowrate meters by replacement way while providing target flowrate of working fluid through each successive flowrate meter and reference meter according to readings of previously certified flowrate meters; in addition setting in last flowrate meter reference value and passing through it necessary flowrate of fluid; evaluating error of metrological certification of the whole system by comparing certification results of last flowrate meter in flowrate metering system and in reference system. EFFECT: enhanced authenticity of metrological certification.