The use of Optical Pyrometers for Temperature Measurement and Evaluation of Turbine Blades

    CA Smith, Rotadata Ltd., Derby, UK. Gas Turbine O&M Expo, London, UK. 2005.

    Access to reliable engine data is a pre-requisite of avoiding unscheduled removals and premature failures. Modern air cooled turbine blades exhibit defects not detectable by traditional methods of engine condition monitoring. Rotadata optical pyrometers provide a thermal image map of individual blade surfaces under engine operating conditions. Data is used to diagnose and monitor blade abnormalities (e.g blade to blade differences; hot spots caused by TBC erosion. This allows the operator to optimise planned maintenance and dramatically reduce operating costs.


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