Patent ID: 6708561
Filing Date: 2004-03-23
Classification: G01F

Abstract:
A device for detecting a mass of a flowing fluid, the device comprising:a housing having a fluid sampling portion and a circuit cavity portion, wherein the fluid sampling portion is positionable within a fluid carrying duct and includes a tubular U-shaped flow passage having a re-directional portion for re-directing the flowing fluid, the re-directional portion having a constant radius bend; a nozzle in fluid communication with the tubular flow passage, wherein the nozzle has a nozzle exit; a first electrical element disposed in the flow passage at the nozzle exit; and a circuit module in communication with the first electrical element and disposed in the circuit cavity portion for detecting a change in an electrical property of the electrical element, wherein the detected change in the electrical property is used to determine the mass of the flowing fluid.