Patent
Method for determining fluid mass flow rate by measurement of a temperature profile in a pipe and measuring the time of travel until the same profile is detected at a downstream point, so that calibration is not required
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TLDR
In this paper, a system for determining fluid mass flow rate using two measurement arrays for determining the temperature profile of fluid flowing in a pipe at intervals to each other, means for recording the time elapsed between a certain measured profile moving downstream from the first array to the second and calculation means for determining a corresponding mass flow ratio.Abstract:
Method for determination of fluid mass flow velocities, in which the temperature profile in a pipe or conduit is measured at a first measurement point and the time measured until the same temperature profile occurs at a downstream measurement point. As the separation of the two points is fixed the mass flow rate can be determined. An Independent claim is made for a system for determining fluid mass flow rate using two measurement arrays for determining the temperature profile of fluid flowing in a pipe at intervals to each other, means for recording the time elapsed between a certain measured profile moving downstream from the first array to the second and calculation means for determining a corresponding mass flow rate. Typically a temperature sensor will be placed at or near the center of a pipe.read more
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Verfahren zur Strömungsgeschwindigkeits- und Durchflußmessung sowie Sensor zur Durchführung des Verfahrens und nach diesem Verfahren arbeitender Durchflußmesser
TL;DR: In this paper, a Steuereinrichtung 7 mist die Laufzeit der Temperaturveranderung von der Heizeinrichtsung 4 zu einem Temperatursensoren 5 oder 6 oder von einem temperatursensor 5 zum nachsten Temperaturusensor 6.
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