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Method for controlling the quality of industrial processes and system therefrom

  • US 7,640,125 B2
  • Filed: 03/16/2005
  • Issued: 12/29/2009
  • Est. Priority Date: 03/16/2004
  • Status: Expired due to Fees
First Claim
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1. A method for controlling the quality of an industrial process, of the type comprising the steps of:

  • making available one or more reference signals relating to the industrial process;

    acquiring one or more real signals, indicative of the quality of said industrial process;

    comparing, using a processing unit, said one or more reference signal to said one or more real signals to identify defects in said industrial process, said comparing operation including;

    obtaining a real part and an imaginary part from said reference signal; and

    obtaining a real part and an imaginary part from said real signal;

    wherein said comparing operation further comprises the operations of;

    computing first comparison quantities by performing a comparison between values of said real part and of said imaginary part from said reference signal;

    computing second comparison quantities by performing a comparison between values of said real part and of said imaginary part from said real signal; and

    comparing said first comparison quantities and said second comparison quantities to obtain time location information associated to the presence of defects.

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