Patent ID: 6575045
Filing Date: 2003-06-10
Classification: G01F

Abstract:
A measurement device for measuring enthalpy and flow rate of a multi-phase mixture in a restricted area, comprising:two current electrodes within a nozzle within the restricted area, wherein a first electrical current is excited within the nozzle between said two current electrodes; at least two voltage electrodes within the nozzle within said restricted area, wherein a voltage is present between at least two of said at least two voltage electrodes, and wherein the voltage is produced by the first electrical current; and at least one measurement meter; wherein the enthalpy of the multi-phase mixture is determined by said at least one measurement meter in accordance with a resistivity as measured by said at least one measurement meter, wherein the resistivity is generated by the at least one voltage and the first electrical current in the restricted area; and wherein a flow rate of the multi-phase mixture through the restricted area is determined by said at least one measurement meter in accordance with a differential pressure as measured by said at least one measurement meter, wherein the differential pressure is comparatively generated between the restricted area without the nozzle and within the nozzle.