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Method of visually inspecting turbine blades and optical inspection system therefor

  • US 7,489,811 B2
  • Filed: 10/08/2004
  • Issued: 02/10/2009
  • Est. Priority Date: 10/08/2004
  • Status: Expired due to Fees
First Claim
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1. An optical inspection system for visually inspecting a blade of a turbine, said turbine including an inspection port said optical inspection system comprising:

  • an imager arranged to capture images of said blade while said turbine is at a turning gear operation;

    a viewing device coupled to said imager and structured to permit said imager to view said blade through the inspection port of said turbine; and

    an illuminating assembly arranged to illuminate said blade while said imager captures images thereof,wherein said viewing device includes a temperature-resistant window.

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