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System for on-line assessment of the condition of thermal coating on a turbine vane

  • US 20060132149A1
  • Filed: 12/20/2004
  • Published: 06/22/2006
  • Est. Priority Date: 12/20/2004
  • Status: Active Grant
First Claim
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1. A system for monitoring the condition of a coating on a turbine engine component comprising:

  • a turbine engine component;

    a coating applied over at least a portion of the turbine engine component;

    at least one assessment wire extending about at least a portion of the component such that at least a portion of each assessment wire is in contact with the coating;

    a power source electrically connected to the at least one assessment wire, wherein an electrical current is passed along the at least one assessment wire; and

    a measuring device operatively associated with the at least one assessment wire so as to determine the electrical resistance across the assessment wire, whereby increases in resistance across the at least one assessment wire indicates a disconnect in the at least one assessment wire which further indicates possible damage to the coating.

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