FIELD: measuring technique.
SUBSTANCE: feeding and reverse pipelines in heat meter are provided with volumetric electromagnet flow meter, pressure converters, and temperature converters, units for computing density, enthalpy and weight of heat transfer agent. Four division units for dividing output signals from feeding and reverse pipelines are introduced into heat meter as well as two memory units, environmental temperature two conversion units and two temperature subtraction units. All outputs of introduced units are connected with indicator. Received relations of output signals of volumetric flow meters, pressure and temperature converters are chosen as test signal. During exploitation, the test signal is compared current meaning of volumetric masses and consumption of heat transfer agent during average time and corresponding corrections are received. From common signal, mixed with noises, rest voltage, heat noises and zero drift are selected. Coefficient of conversion of devices is determined at feeding and reverse pipelines and corresponding correction is introduced into volumetric consumption and mass of heat agent is intruded.
EFFECT: improved precision of measurement.
2 cl, 1 dwg
Authors
Dates
2007-05-27—Published
2006-03-23—Filed