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Thermal inspection system and method

  • US 7,909,507 B2
  • Filed: 04/11/2008
  • Issued: 03/22/2011
  • Est. Priority Date: 04/11/2008
  • Status: Expired due to Fees
First Claim
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1. A thermal inspection method for a component comprising at least one complex internal passage arrangement defining at least one opening, the thermal inspection method comprising:

  • flowing a fluid through the at least one complex internal passage arrangement, wherein the fluid has an initial temperature that differs from an initial temperature of the component;

    measuring a thermal response of the component to the fluid flow;

    analyzing the thermal response to determine a plurality of heat transfer coefficients {hlmn} corresponding to a respective plurality of locations {l,m,n} within the complex internal passage arrangement; and

    using the heat transfer coefficients {lmn} to determine a flow rate through respective ones of the at least one opening by comparing the heat transfer coefficients {lmn} for the component with corresponding ones of a plurality of heat transfer coefficients {hreflmn} for a reference part comprising at least one complex, internal passage arrangement defining at least one opening.

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