Instrumental error compensation circuit for flow meter
Patent 4581946 Issued on April 15, 1986. Estimated Expiration Date: 
June 17, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 17, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesApparatus and method for measuring fluid flow over a wide range of fluid flow conditions and viscosities Flow rate computer Liquid meter comprising a circuit for reducing a detection error resulting from a variable flow rate Patent #: 4306457 InventorApplicationNo. 06/505525 filed on 06/17/1983US Classes:73/861.77, Using rotating member with particular electrical output or circuit702/100, Fluid or fluid flow measurement702/45, Flow metering73/861.83Axial supply and deliveryExaminersPrimary: Goldstein, HerbertAttorney, Agent or FirmInternational ClassesG01F 1/12 (20060101)G01F 1/05 (20060101) G01F 15/02 (20060101) G01F 15/00 (20060101) Foreign Application Priority Data1982-06-21 JPAbstractAn instrumental error compensation circuit for a flow meter is disclosed in which a flow rate calculated from an output signal of the flow meter is identified with respect to a plurality of predetermined sections of flow rates. Flow rate compensation coefficients are calculated by linear interpolation on the basis of actually measured data which are obtained in advance in accordance with instrumental errors of the flow meter. Actual flow rates of a fluid are measured with the instrumental errors of the flow meter compensated for by the calculated coefficients. | |
