Patent ID: 9239257
Filing Date: 2016-01-19
CPC Classification: G01F

Claim Text:
1. A mass flow meter system for immersion in fluid flow comprising: an elongate velocity sensor probe comprising a Resistance Temperature Detector (RTD) having a heated length and a proximal temperature sensor adjacent to a proximal end of the heated length, an active region of the proximal temperature sensor located at a first distance from the proximal end of the heated length, the first distance being equal to or less than about three times a diameter of the velocity sensor probe; and a computer processor programmed to calculate mass flow rate based on a computational model corresponding to a relationship of heat conduction in the velocity sensor probe and convection of fluid flow relative to electrical power supplied to the RTD, using a first temperature measurement from the RTD and a second temperature measurement from the proximal temperature sensor with the second temperature measurement used as a boundary condition in the computational model.