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Comparing MTM and PPPL metrology data

This report compares the metrology data from the MTM and PPPL systems, highlighting the offset values and data patterns observed on the outside surface of the vessel. The analysis includes 435 data points from MTM and 497 points from PPPL, with both datasets showing offsets of 0.050 inches above the nominal position. The overlay of PPPL and MTM data is presented, illustrating the correspondence between both systems. The analysis reaffirms the consistency in measurements despite differences in point sizes, aiding in understanding vessel surface integrity.

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Comparing MTM and PPPL metrology data

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  1. Comparing MTM and PPPL metrology data STB-VVSA1-65678-1_LEFT_MECH.ASM STB-VVSA1-65678-1_SURF.PRT Summary: PPPL metrology of VVSA1 match the data pattern provided by MTM and the offset value is in the same range as the data points provided by MTM. 8/1/06

  2. All points are on the vessel outside surface Data on far side of VV (see next slide) MTM data PPPL data 435 points are shown with .1875” + an additional .050” offset above nominal position. 497 points are shown with .1875” + an additional .050” offset above nominal position.

  3. All points are on the vessel outside surface MTM data PPPL data 435 points are shown with .1875” + an additional .050” offset above nominal position. 497 points are shown with .1875” + an additional .050” offset above nominal position.

  4. Overlay of PPPL and MTM data (all outside shell surface points).

  5. PPPL - yellow spheres MTM - blue and light green spheres 0.421” yellow offset 0.543” blue offset 0.396” yellow offset 0.430” blue offset

  6. PPPL - yellow spheres MTM - blue and light green spheres

  7. All points are on the vessel inside surface Although the points are different the size of the offset is about the same (see next few slides) MTM data PPPL data 426 points are shown with .1875” + an additional .050” offset below nominal position. 361 points are shown with .1875” + an additional .050” offset below nominal position.

  8. PPPL - yellow spheres MTM - blue spheres

  9. PPPL - yellow spheres MTM - blue spheres

  10. PPPL - yellow spheres MTM - blue spheres

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