The present invention relates to a sensor for measuring the instantaneous rate of mass flow and the cumulative mass flow in steady or unsteady flows of single-phase liquids or gases in a duct. By measuring the shear stress or the streamwise pressure gradient at the duct wall, and relating it to mass...http://www.google.fr/patents/US6408698?utm_source=gb-gplus-shareBrevet US6408698 - Sensors and method for measurement of flow rates and cumulative flow in ducts
Sensors and method for measurement of flow rates and cumulative flow in ducts
