×

Method and apparatus for measuring the volume of a flowing liquid

  • US 4,969,365 A
  • Filed: 12/04/1989
  • Issued: 11/13/1990
  • Est. Priority Date: 04/24/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. Method for measuring the volume of a liquid flowing through a measuring chamber (2, 50, 51, 55) during a measuring period, during which a number of pulses corresponding to the volume is generated by a pulse generator (12, 78, 79), which method comprises the steps of dividing the measuring period into a number of measuring intervals, detecting the pulses in each measuring interval and multiplying the detected pulses by a flow correction factor,characterized by the steps, during each measuring interval, of:

  • detecting the pulses from the pulse generator (12, 78,

         79), multiplying each separate detected pulse by a flow correction factor which has been selected on the basis of the sum of the corrected pulse values for one or more of the preceding measuring intervals, adding the corrected pulse values to a summation variable and multiplying the value of this summation variable by a volume conversion factor for determining the liquid volume during the measuring interval concerned, and by the step of summing up the liquid volumes for all measuring intervals during the measuring period.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×