Non-Destructive Testing

ND photo
Tough, light and reliable materials are the key for many of developments. Identification of defects, impurities or cracks in these materials is therefore important. X-ray imaging is a tool used for these purposes for a long time. However, the standard imaging technology was tuned mostly for metals. Therefore, the traditional X-ray imaging systems fail in case of modern light materials such as composites. The novel materials therefore call for novel inspection technologies and photon counting detectors are ideal for this purpose.

Advanced NDT solutions

Advacam brings to the market a new range of X-ray imaging cameras that are optimized for composite material testing. Similarly to the applications in biology, also here the non-destructive testing (NDT) takes advantage of the sensitivity to low energies. Therefore, light materials such as carbon fibres, epoxies, etc. are easily revealed in a great detail. Hence, even challenging defects such as deep laminate wrinkles, kissing-bonds, delaminations, porosity, foreign objects and micro-cracks in the soft materials can be detected with spatial resolution of 55 µm or better. Combining the sensitivity to low X-ray energy photons with the very high dynamic range of photon counting detectors creates a powerful tool for NDT in airspace industry and elsewhere.
Contrary to the classical X-ray imaging setups, the robotic system produced by Radalytica company gives nearly absolute flexibility of viewing angles. Therefore, robots allow “looking” with X-rays from a different perspective to better localize defects. Moreover, robots further open possibility of using 3D imaging techniques such as computed tomography or tomosynthesis. These are methods commonly used in X-ray imaging, but with limited applicability on large complicated shapes. Robots overcome this limit. The robotic systems could be used in quality control labs or built into production lines.

Radalytica's robotic system prototype inspecting a glider aileron. The robot on left holds a compact X-ray tube. The X-ray imaging detector is mounted on the robotic arm on right. The final X-ray image reveals voids and impurities in the internal composite structure.

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