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.
Papers published on a yearly basis
Papers
More filters
Patent•
19 Dec 2013TL;DR: In this article, a multi-phase flow metering system for measuring a multiphase fluid including oil, water, and gas, including a Coriolis mass flow meter adapted to measure mass flow rate and density of the multiphase fluid, is presented.
Abstract: A multi-phase flow metering system for measuring a multi-phase fluid including oil, water, and gas, includes a Coriolis mass flow meter adapted to measure mass flow rate and density of the multi-phase fluid. The system has a water cut meter adapted to measure the water cut of the multi-phase fluid. A processor is configured to determine the oil mass flow rate of the oil, water mass flow rate of the water, and gas mass flow rate of the gas using the mass flow rate and density from the Coriolis meter and the water cut from the water cut meter. The processor is further configured to determine dynamic estimates of the uncertainty of each of the oil mass flow rate, water mass flow rate, and gas mass flow rate.
20 citations
Patent•
15 Jun 1988TL;DR: In this paper, a hot wire-type air flow meter is proposed to accurately measure air suction rate of an internal combustion engine and stabilize the flow distribution, where a main flow passage constituting a suction air flow passage is installed in the engine.
Abstract: The present invention, the object of which is to provide a hot wire type air flow meter capable of accurately detecting an air suction rate of an internal combustion engine and stabilizing the flow distribution, relates to a hot wire type air flow meter having a main flow passage constituting a suction air flow passage in an internal combustion engine, a hot wire element for measuring the suction air, and an auxiliary flow passage provided therein with the hot wire element and installed in the main flow passage, wherein the auxiliary flow passage has a flow passage member extending in the axial direction of the main flow passage and a flow passage member extending in the radial direction of the main flow passage, a constriction being provided between the auxiliary flow passage and a throttle valve disposed on the downstream side the reof.
20 citations
Patent•
26 Jul 2001TL;DR: In this paper, a thermal air flow rate measuring apparatus consisting of at least one heating resistor disposed in gas fluid, resistance bulbs formed at an upstream part and a downstream part of the heating resistor in the flow direction of the fluid, means for outputting at least two signals related to the flow rate of fluid, quantizing outputted values, and means for operating flow rate based on a quantized signal.
Abstract: A thermal air flow rate measuring apparatus having a high measuring accuracy, in which sensitivity is enhanced by an operating means using sensors having different output characteristics and employing a digitized signal, and the sensitivity and temperature can be corrected easily depending on the flowing direction of fluid. The measuring apparatus comprises at least one heating resistor disposed in gas fluid, resistance bulbs formed at an upstream part and a downstream part of the heating resistor in the flow direction of the fluid, means for outputting at least two signals related to the flow rate of the fluid, means for quantizing outputted values, and means for operating the flow rate based on a quantized signal.
20 citations
Patent•
21 May 2013
TL;DR: In this article, a non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection includes a heater, an ambient temperature sensor and a flow rate sensor which are configured to sense the temperature of a fluid in a conduit, and then monitor the flow of that fluid through the conduit.
Abstract: A non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection includes a heater, an ambient temperature sensor and a flow rate sensor which are configured to sense the temperature of a fluid in a conduit, and then monitor the flow of that fluid through the conduit. The fluid flow sensor is incorporated into a Wheatstone bridge circuit which is used to provide increased sensitivity to the outputs of the sensors. Based upon the ambient temperature sensor readings, the flow rate sensor and heater may be adjusted to optimize the operation of the system to detect leaks. An alternative embodiment utilizes a single sensor and separate heater which work together to determine heat propagation times which in turn is used to calculate flow rate. Based on the sensor readings, the flow may be adjusted to prevent damage and leaks by relieving the system of excess pressure.
20 citations
Patent•
14 Mar 2007
TL;DR: A vibratory flow meter for determining viscosity of a flow material is described in this paper, which includes a meter assembly (200) configured to generate a density (p) of flow material, generate a first mass flow rate (m1) for a first flow tube and a second mass flow ratio (m2) for the second flow tube.
Abstract: A vibratory flow meter (5) for determining a viscosity of a flow material is provided according to the invention. The vibratory flow meter (5) includes a meter assembly (200) configured to generate a density (p) of a flow material, generate a first mass flow rate ( m1) for a first flowtube (210a), and a second mass flow rate (m2) for a second flowtube (210b). The vibratory flow meter (5) further includes a restrictive orifice (252) located in the first flowtube (210a). The restrictive orifice (252) ensures that a first flow rate of the flow material in the first flowtube (210a) is less than a second flow rate of the flow material in the second flowtube (210b).
20 citations