EP 0929797 A1 19990721 - SIGNAL PROCESSING AND FIELD PROVING METHODS AND CIRCUITS FOR A CORIOLIS MASS FLOW METER
Title (en)
SIGNAL PROCESSING AND FIELD PROVING METHODS AND CIRCUITS FOR A CORIOLIS MASS FLOW METER
Title (de)
VERFAHREN ZUR SIGNALVERARBEITUNG UND KALIBRIERUNG VON ORT SOWIE SCHALTUNGEN FÜR EINEN CORIOLIS-MASSENDURCHFLUSSMESSER
Title (fr)
PROCEDES DE TRAITEMENT DE SIGNAUX ET DE VERIFICATION SUR PLACE, ET CIRCUITS POUR DEBITMETRE-MASSE A ACCELERATION DE CORIOLIS
Publication
Application
Priority
US 9700837 W 19970116
Abstract (en)
[origin: WO9831990A1] A signal processing apparatus and method for measuring a mass flow rate of a fluid flowing in conjunction with a surface of a Coriolis mass flow meter and a field-provable Coriolis mass flow meter. The apparatus includes: (1) a driver for creating a prescribed vibration in the surface, (2) a motion sensor for measuring a motion of the surface, (3) response characteristic determination circuitry, coupled to the motion sensor, for determining a response characteristic of the surface and (4) flow rate calculation circuitry, coupled to the response characteristic determination circuitry, for calculating a measured mass flow rate of the fluid as a function of the motion and the response characteristic. The field-provable meter employs the response characteristic to monitor or compare meter performance without requiring a separate proving device.
IPC 1-7
IPC 8 full level
G01F 1/84 (2006.01)
CPC (source: EP)
G01F 1/8431 (2013.01); G01F 1/8436 (2013.01); G01F 1/8463 (2013.01); G01F 15/024 (2013.01)
Citation (search report)
See references of WO 9831990A1
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
WO 9831990 A1 19980723; AU 1704197 A 19980807; AU 744821 B2 20020307; CA 2271030 A1 19980723; CA 2271030 C 20030318; EP 0929797 A1 19990721
DOCDB simple family (application)
US 9700837 W 19970116; AU 1704197 A 19970116; CA 2271030 A 19970116; EP 97903005 A 19970116