Measurements – CAD Comparison



CT is the only technology capable of measuring dimensions inside an object. CT may be used and can provide accurate measurements thanks to NSI’s calibration method.


After CT reconstruction, a surface model can be exported as pointscloud or triangle model. It is then possible to import this model withany CAD software for applications like Reverse Engineering, RapidPrototyping, or Measurements.

An example of very efficient and fast metrology study is the automatic 3D model comparison capability of the software Geomagic. The image above shows a comparison between a CAD file and a CT file of an aluminum part, a full metrology report is created including measurement deviation and colored surfaces.

This method is revolutionary because for the first time an entire object (both internal and external) can be dimensionally controlled in 3D in high accuracy with very short delay.