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System and method for normalizing and calibrating a sensor array

  • US 6,252,393 B1
  • Filed: 06/10/1999
  • Issued: 06/26/2001
  • Est. Priority Date: 06/23/1998
  • Status: Expired due to Fees
First Claim
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1. A method for simultaneously normalizing and calibrating a sensor array, the sensor array for use in scanning a work piece to detect discontinuities in the work piece, said method comprising the steps of:

  • providing a sensor array having multiple sensors capable of producing an electrical signal indicative of a discontinuity in a work piece;

    providing a test specimen comprising at least one linear feature and at least two notches;

    scanning said test specimen using said sensor array to produce multiple electrical signal traces indicative of said linear feature and said at least two notches; and

    using said multiple electrical signal traces to adjust each said sensors of said sensor array to obtain uniform electrical signal from each said sensor.

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