Liquid mass flow rate computer

A flow rate computer is proposed which implements an algorithm for dividing the volumetric flow rate, measured by a turbine flow meter, into the signal from the liquid flow velocity head meter signal (the device actually measures the axial force acting upon the turbine, rather than the velocity Head). The block diagram of the device is presented and traced. The accuracy with which the numerator, denominator and their ratio are calculated and multiplied by the constant is limited by the corresponding digitization errors, which can be reduced to the required level by selecting the measurement interval. The choice of measurement interval is not affected by dispersion of the parameters of the transducers, which makes it possible to use the same inverval for different transducers. The device permanently scores all transducer parameters in memory, which permits them to be corrected in accordance with test results.