Patent ID: 6053053
Filing Date: 2000-04-25
Classification: G01F

Abstract:
A multiple flow metering system for providing first and second outputs indicative of a fluid flow, the multiple flow metering system comprising:a first vortex flowmeter comprising a first body having a leading edge and a shape for inducing a first stream of vortices in the fluid as a function of the flow at a wavelength .lambda. and a first vortex sensor disposed in said first body and generating the first output based on a frequency of the first stream of vortices; anda second vortex flowmeter comprising a second body having a leading edge and a shape for inducing a second stream of vortices in the fluid as a function of the flow and a second vortex sensor disposed in said second body and generating the second output based on a frequency of the second stream of vortices, wherein the leading edge of the second body is spaced from the leading edge of the first body by 1.15.lambda. to 2.0.lambda. of the first stream of vortices such that the frequencies of the first and second streams of vortices and thus the first and second outputs substantially track one another.