Topic
Thermal mass flow meter
About: Thermal mass flow meter is a research topic. Over the lifetime, 1759 publications have been published within this topic receiving 21878 citations.
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Patent•
28 Jun 1974TL;DR: In this article, an improved fluid flow sensor configuration comprises a thin membrane of a low thermally conductive material having one surface in thermal contact with the heating and temperature sensitive elements of a fluid flow sensors and the other surface in temperature-sensitive elements of the fluid whose flow rate is measured by the sensor.
Abstract: An improved fluid flow sensor configuration comprises a thin membrane of a low thermally conductive material having one surface in thermal contact with the heating and temperature sensitive elements of a fluid flow sensor and the other surface in thermal contact with a fluid whose flow rate is measured by the fluid flow sensor.
30 citations
01 Jan 2005
TL;DR: Fully developed Turbulent Pipe Flow. as mentioned in this paper describes the effect of area changes in Swirling Flow and how to correct the error shift of an Ultrasonic Flow Meter Downstream of installation.
Abstract: Fully Developed Turbulent Pipe Flow. - Decay of Disturbances in Turbulent Pipe Flow. - Optimal Characteristic Parameters for the Disturbances in Turbulent Pipe Flow. - Measurement of Velocity and Turbulence Downstream of Flow Conditioners. - Signal processing of Complex Modulated Ultrasonic Signals. - Vortex-Shedding Flow Metering Using Ultrasound. - Ultrasonic Gas-Flow Measurement Using Correlation Methods. - Ultrasound Cross-Correlation Flow Meter: Analysis by System Theory and Influence of Turbulence. - Effect of Area Changes in Swirling Flow. - Errors of Turbine Meters due to Swirl. - Investigation of Unsteady Three-Dimensional Flow Fields in a Turbine Flow Meter. - How to Design a New Flow Meter from Scratch. - Effects of Disturbed Inflow on Vortex Shedding from a Bluff Body. - Correction of the Reading of a Flow Meter in Pipe Flow Disturbed by Installation Effects. - How to Correct the Error Shift of an Ultrasonic Flow Meter Downstream of Installations.
30 citations
TL;DR: In this article, a high precision gas meter suitable for low rates of flow (< 5 cm3 min−1) which can be interfaced with data acquisition software for continuous on-line measurement is described.
30 citations
Patent•
19 Mar 1976
TL;DR: In this paper, a system for measuring the mass flow of a fluid stream wherein gas is interspersed with liquid, the system providing separate mass flow readings for the gas and liquid.
Abstract: A system for measuring the mass flow of a fluid stream wherein gas is interspersed with liquid, the system providing separate mass flow readings for the gas and liquid. The system includes a mass flow vortex-type meter having a flow tube through which the stream is conducted, the meter producing an output signal whose frequency is indicative of volumetric flow and whose amplitude is indicative of mass flow. This output signal is routed either to a liquid-mass flow indicator or to a gas-mass flow indicator by a switch responsive to a density signal whose magnitude depends on the density of the fluid passing through the meter, such that when the stream is in liquid form the output signal is applied to the liquid indicator, and when in gas form to the gas indicator. The density signal is generated by a detector that in one channel converts the meter output signal to a first analog voltage representing volumetric flow and in a second channel to a second analog voltage representing mass flow, the second voltage being divided by the first to produce a third analog voltage constituting the density signal.
30 citations
TL;DR: In this article, a dimensional analysis on two phase flow through a horizontally mounted Venturi meter is performed, and the derived dimensional groups are compared and related to those used in existing DP meter two-phase flow models and correlations.
30 citations