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Method for controlling an amount of material delivered during a material transfer

  • US 6,441,322 B1
  • Filed: 06/01/2000
  • Issued: 08/27/2002
  • Est. Priority Date: 11/24/1999
  • Status: Expired due to Term
First Claim
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1. A method for controlling an amount of material delivered during a material transfer, comprising the steps of:

  • inputting a target amount for a material to be delivered from a source location to a target location;

    updating the target amount during the delivery of the material using a predictive model-based algorithm; and

    updating said predictive model-based algorithm based on process performance data using a recursive least-squares procedure, wherein said predictive model-based algorithm updates the target amount to equal a dispensed amount plus a predicted spill amount, wherein said predicted spill amount is defined by the following predictive model;

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