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In-track wheel inspection system

  • US 7,555,954 B2
  • Filed: 04/26/2006
  • Issued: 07/07/2009
  • Est. Priority Date: 04/26/2005
  • Status: Active Grant
First Claim
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1. A method of performing real-time defect recognition on a train wheel, comprising:

  • detecting the train wheel entering a test station;

    accelerating a test head to match the speed of the train wheel;

    injecting, from the test head, pulses of a plurality of ultrasonic beams into the train wheel;

    detecting acoustic responses caused at a discontinuity of an elongated material;

    determining at least one characteristic of the detected acoustic responses; and

    determining a pattern of a feature of the wheel associated with said discontinuity based on the at least one characteristic and at least one pattern recognition rule.

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