Turbine blade measurement using Focus Variation technique

The measuring object in this measurement report is a used turbine blade, measured with the optical coordinate measuring machine µCMM and a rotation unit (Advanced Real3D). 

In order to analyze the turbine blade, the following parameters are measured: 

• geometry of a cooling hole
• defects
• airfoil analysis (leading & trailing edge radii, form deviation, profile twist, etc.)
• fir tree geometry
• profile & areal roughness