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Hot gas path measurement

  • US 8,678,644 B2
  • Filed: 08/16/2011
  • Issued: 03/25/2014
  • Est. Priority Date: 08/16/2011
  • Status: Active Grant
First Claim
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1. A hot gas path measurement apparatus, comprising:

  • a substrate having a coating applied on a substrate surface thereof such that the coating is interposed between the substrate and a hot gas path; and

    a measurement device fixed in a recess formed in the substrate, the recess being formed such that portions of the substrate surface outside the recess are disposed at a first plane and portions of the substrate surface in the recess are disposed at a second plane and are recessed from the first plane, the measurement device including;

    a sensor, anda holder configured to position the sensor in an alignment condition with a plane of a surface of the coating or at least partially within a span of the hot gas path, the holder comprising;

    an insulator having an insulator recess formed therein to extend from the second plane to at least the plane of the surface of the coating; and

    a holding agent disposed to secure the sensor in the insulator recess in the alignment condition.

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