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MULTIPLE FLOW RATE MEASUREMENT USING UNSTEADY PRESSURES
MULTIPLE FLOW RATE MEASUREMENT USING UNSTEADY PRESSURES
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机译:使用非定常压力进行多次流量测量
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摘要
A multiple flow rate measurement system includes an array of spatial filters (650-658) located a predetermined distance ΔX apart along the pipe (12), each filter comprised of unsteady pressure sensors capable of measuring the unsteady pressure in the pipe (12). Each spatial filter (650-658) provides signals which indicative of a vortical pressure disturbance associated with a constituent within the flow mixture. The signals are cross-correlated by Cross-Correlation Logic (50) to determine a time delay τ between each of the filter locations which is divided into the distances ΔX between certain spatial filters to obtain a convection velocity Uc(t) that is related to a velocity of a constituent within the fluid mixture.
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