METHOD OF PAYMENT OF THE INFLUENCE LEVEL fluid temperature on the measurement results of its expenses thermal flowmeter

摘要

FIELD: measurement technology.;SUBSTANCE: emf of sensor of temperature difference t₂ of fluid across inlet of measurement channel and temperature t_e in points of thermal contact of ambient medium or radiator with external surface of sensors of heat flow is connected in opposition to emf of sensors of heat flow. Flow rate is established by signals from sensors of heat flow, thermocouple sensor of temperature difference (t₁-t_e) and sensor of temperature difference Δt of temperatures t₁ and t₂, where t₂ is temperature of fluid across outlet of measurement cannel.;EFFECT: expanded measurement range of heat flowmeters towards values close to zero.;1 dwg