AT414261T

An apparatus and method for compensating a coriolis meter

Abstract

Det er tilveiebrakt et strømningsmålesystem som tilveiebringer minst en av en kompensert massestrømningsmengdemåling og en kompensert tetthetsmåling. Strømningsmålesystemet innbefatter et gassvolumfraksjonsmeter i kombinasjon med et coriolismeter. GVF-meteret måler akustiske trykk som forplanter seg gjennom fluidene for å måle hastigheten til lyd som forplanter seg gjennom fluidet for å beregne minst gassvolumfraksjonen til fluidet og/eller den reduserte naturlige frekvensen. For å bestemme en forbedret tetthet for coriolismeteret, blir den beregnede gassvolumfraksjonen og/eller redusert frekvens tilveiebrakt til en proesseringsenhet. Den forbedrede tettheten blir bestemt ved bruk av analytisk avledede eller empirisk avledede tetthetskalibreringsmodeller (eller formler avledet for dette), som er en funksjon av den målte naturlige frekvensen og minst en av den bestemte GVF, redusert frekvens og hastighet til lyd, eller en kombinasjon av dette. Gassvolumfraksjon (GVF) meteret kan innbefatte en avfølingsanordning som har et antall deformasjonsbaserte eller trykksensorer adskilt aksialt langs røret for å måle de akustiske trykkene som forplanter seg gjennom strømningen.

Term

No projected expiry on record.

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