FLUIDSTRÖMUNGSMESSER MIT THERMISCHEN TRACERN

Fluid flows through a conduit. To measure flow speed the fluid is heated at a heating location in the conduit with a time-dependent heating strength. A speed of sound in fluid flowing in the conduit is measured at a plurality of sensing locations downstream from said heating location. The flow speed...

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Bibliographic Details
Main Authors LOETTERS, JOOST CONRAD, VOLKER, ARNO WILLEM FREDERIK, BLOKLAND, HUIBERT, VELTHUIS, JOHANNES FRANSISCUS MARIA
Format Patent
LanguageGerman
Published 15.01.2011
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Summary:Fluid flows through a conduit. To measure flow speed the fluid is heated at a heating location in the conduit with a time-dependent heating strength. A speed of sound in fluid flowing in the conduit is measured at a plurality of sensing locations downstream from said heating location. The flow speed of the fluid is determined from a delay with which the time dependence is detected in the sound speeds measured at said sensing locations. In an embodiment a frequency of the variation of heating strength that is used to determine the flow speed is selected automatically dependent on the flow speed and/or other circumstances.
Bibliography:Application Number: AT20070834679T