Technologies

We research and develop various technologies in the field of non-destructive testing that range from conventional two-dimensional radioscopy and three-dimensional computed tomography, to optical technologies, among others for inspecting surfaces.

Computed tomography (CT)

 

High energy CT

Together with partners, Fraunhofer EZRT developed an XXL CT system that can be used to scan oversized objects such as an entire vehicle

 

Inline CT

The advanced inline computed tomography technology developed by Fraunhofer EZRT allows cast parts to be inspected even during the manufacturing process. The benefits of this process-integrated inspection solution are many and varied and include fully-automated x-ray inspections and a reduction in the number of rejected parts and components.

 

Portable CT

The portable computed tomography technology was developed for the location-independent inspection of objects made of less-absorbent materials that are no larger than a tennis ball. Despite its compact dimensions and extremely low weight, this x-ray system is in no way inferior to its »bigger brothers«.

 

High-resolution CT

Backed by extensive know-how in the field of computed tomography, Fraunhofer EZRT is capable of generating extremely fine, high-resolution radiographic images using appropriate CT systems. That means the internal structures of even the smallest objects can be visualized in microscopic resolution.

 

Phase contrast and darkfield CT

Raster-based phase contrast technology and its incorporated darkfield contrast imaging, provide a unique opportunity to create two- and three-dimensional representations of microscopic structure information in objects as large as 15 cm. This technology is used mainly for analyzing the structure of fiber-reinforced plastics, including any damage, as well as for inspecting microporous bioimplants.

Additional x-ray technologies

 

Automated radioscopy

With radioscopy technology, two-dimensional radiographic images can be created from any object. These high-resolution images can be used not only for detecting defects, but also for carrying out other tasks such as assembly analyses.

 

X-ray scattering

Small-angle x-ray scattering - or SAXS - is used to analyze the shape and size distribution of mesoscopic particles in the length scale of 2 nm - 500 nm. Typical applications include the examination of protein solutions, nanoporous solid bodies, nano fibers and aerogels.

 

Computed laminography

Computed laminography (CL) is an ideal X-ray analysis technique for the inspection of laminar components. Due to their unfavorable aspect ratio they are not easily accessible from all sides and thus a regular CT scan cannot be performed. CL is employing alternative scanning geometries for overcoming these hindrances. Individual sectional planes of an object can be represented sharply (focal plane). An extraction of a multitude of focal planes is conducted by means of reconstruction algorithms like tomosynthesis or iterative methods, each having specific advantages. In addition to the inspection of printed circuit boards, CL is applied in the analysis of modern lightweight materials (e.g. fibre reinforced polymers CFRP and GFRP).

 

Dual energy methods

With dual energy x-ray technology, the material under test is subjected to two different x-ray spectra, which permits the identification of different materials based on the varying chemical atomic numbers.

Optical technologies

 

Optical 3D measurement technology

For rapid three-dimensional scanning of surfaces, we rely primarily on sheet-of-light imaging, an especially advantageous method for inspecting moving objects. We possess extensive experience in this field, particularly in applications such as tire manufacturing and the inspection of finished tires, wheels and brake system sealing gaskets.
 

Optical surface inspection

A wide range of industries produce many components with internal surfaces that can only be inspected for defects with endoscopy technology. The use of video technology and suitable lighting makes it possible to inspect these areas by means of ergonomic online visualization.

Detector technologies and components

Detector technologies

The x-ray detectors developed at the Fraunhofer EZRT are establishing new benchmarks in radiation stability. Our products ensure that all semiconductor elements are properly shielded, even at extremely high energy levels. An additional benefit is the ease with which the systems can be adapted to different detector formats and pixel sizes for the inspection task at hand.