US 11,815,377 B2
Vortex flowmeter providing extended flow rate measurement
Jeffrey Mattar, Foxborough, MA (US); and Harry DesRosiers, Attleboro, MA (US)
Assigned to SCHNEIDER ELECTRIC SYSTEMS USA, INC, Foxboro, MA (US)
Filed by Schneider Electric Systems USA, Inc., Foxboro, MA (US)
Filed on Feb. 19, 2021, as Appl. No. 17/179,580.
Prior Publication US 2022/0268607 A1, Aug. 25, 2022
Int. Cl. G01F 1/38 (2006.01)
CPC G01F 1/38 (2013.01) 14 Claims
OG exemplary drawing
 
1. A vortex flowmeter for measuring a flow rate of a fluid, the vortex flowmeter comprising:
a flowtube;
a bluff body positioned in the flowtube for shedding vortices in the fluid when the fluid flows through the flowtube;
a vortex sensor configured to detect the vortices and generate a vortex signal representing the detected vortices;
a pressure sensor arrangement configured to detect a differential pressure in the fluid between a first location upstream of at least a portion of the bluff body and a second location downstream of at least a portion of the bluff body and generate a differential pressure signal representing the differential pressure; and
a measurement processor connected to the vortex sensor and the one or more pressure sensors to receive the vortex signal and the differential pressure signal, respectively, wherein the measurement processor is configured to determine a vortex signal-based measurement of the flow rate using the vortex signal and to determine a pressure signal-based measurement of the flow rate using the differential pressure signal, and wherein the measurement processor is further configured to compare the vortex signal-based measurement and the pressure signal-based measurement.