X-Ray

Application examples: roasted coffee in bulk (source: Wikipedia) | heat-resistant concrete: CT volume image | stents (source: Wikipedia)

X-Ray

Computed tomography (CT) is a contact-free inspection method to provide three-dimensional volume images by means of X-rays. Due to the underlying physics, CT is particularly suited to precisely determine the position of small defects inside the object volume, achieving superior accuracy compared to ultrasonic or thermographical results. Depending on object size, material, and geometry, resolutions up to a few microns can be achieved. Typical applications concern the inspection of components to find defects such as pores, cracks or inclusions. Another field of application is the determination of an object‘s volume structure with subsequent analysis of the material composition and functionality.

The use of image processing software allows the automated detection and evaluation of pores inside the volume. Our CT scanners achieve a resolution of 3 μm in case of components up to 30 cm in diameter and up to 8 kg in weight. Big planar parts up to 150 cm diameter and up to 300 kg weight can be analysed computed laminography (CL) at a resolution up to 20 μm. Smaller objects of this type (up to 40 × 40 cm2) can be inspected with a resolution up to 1 μm and an inspection area of 2 × 2 mm2.

The maximum resolution mainly depends on the geometry and the material composition of the object to be inspected.

SeedInspector: Automated Series Inspection for Small-Batch Production by CT Scanner

Reconstructs and processes image data volumes in real-time

Integrated quality monitoring (for unattended, overnight operation)

Flexible design permits additional analyses for other types of seeds and objects based on dimensions and geometric resolution

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Services in Computed Tomography and Computed Laminography

© Photo Fraunhofer IZFP

Three-dimensional visualization of the computed tomographic reconstruction of a flow indicator (turquoise: automatically detected pores in the object volume)

Fraunhofer IZFP has over 30 years experience in the field of ­X-ray-based NDT. Among our customers global players from aerospace, automotive, and electronics industry, as well as small and medium-sized enterprises from the European Union can be found. Our inspection lab is equipped with X-ray scanners covering a wide range of inspection tasks. Computed tomography and radiography are part of Fraunhofer IZFP‘s accredited inspection lab which complies with DIN EN ISO / IEC 17025.

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