What is tomography ?

Computed Tomography is a non destructive method that enables the complete 2D and/or 3D high resolution digitization of objects. MicroCT differs from the CT scanning by the use of microfocus X-Ray sources, so image precision can reach few microns. Nevertheless scanned objects have to be reduced size (a few centimeters).

There are two processes of CT scanning

Tomography known as « medical CT » : the target is motionless, the X-ray source and the X-ray detector are mobile. Tomography known as « industrial CT » : the object is moving (rotation, rotation/translation), the source and the detector are motionless.

Tomography graph by Digisens Evolution

CT and microCT provide two types of information on the scanned object

  • Geometrical data : metrology, sizes measurements (length, volume…), geometrical checks, reverse engineering
  • Structural data : visualization, density, fitting of materials, structures of alloys, statistical calculations (fibre direction, porosity…)

Main CT and micro-T applications

  • Visual analyze of the internal or external object structure
  • Detection and characterization of object defection – Non Destructive Testing
  • Description or control of density matter differences
  • 3D digitization for Reverse Engineering and CAD
  • 3D digitisation for cultural heritage and popularisation

Here are some applications in industries (R&D, Design, Research, Quality Control, CND)

  • Detect manufacturing defects. As a new technology of NDT, CT can evaluate the conformity of manufacturing objects.
  • Analyze a defect. CT scanning can be used to determine the cause of quality defect.
  • Characterize an assembly. CT makes it possible to differentiate densities, thus one can easily distinguish various materials
  • Characterize a material (before, during and after manufacturing or testing)
  • Measure dimensions, sizes
  • Carry out a reverse engineering project

Thanks to the exceptional materials range that can be scanned with CT, it is possible to scan a large type of materials, collections or manufactured products.

DSS : Tomography and microtomography global service for science
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