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Method and device for a pulsation-free, continuous and gravimetric dosing

  • US 5,046,569 A
  • Filed: 11/16/1990
  • Issued: 09/10/1991
  • Est. Priority Date: 11/24/1989
  • Status: Expired due to Fees
First Claim
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1. In a method for the gravimetric control of a mass flow from or into a container located on a balance using a pulsating dosing pump, comprising wherein the output signal of the balance is digitally filtered, the course in time of the mass flow is cyclically estimated from the filtered weighing signal, this estimated value of the course in time of the mass flow is used to calculate the course in time of an auxiliary mass flow which compensates the pulsation of the mass flow of the pulsating dosing pump and a speed course is calculated from the course in time of the auxiliary mass flow for driving an auxiliary dosing pump.

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