EPP Europe P2.2023

» TEST & QUALITY ASSURANCE
Achieving autonomous inspection
How AI is revolutionising
AOI and AXI systems
Be it AI-supported inspection programme creation or AI
classification of pseudo-defects at the verification station, the
first steps towards achieving autonomous inspection have been
taken. To take even more work off operators’ hands, AOI and AXI
assistance systems are now being developed. Yet there’s still
some way to go before optical inspection is fully automated.
» Christina Schellbach, Public Relations Manager & Andreas Tuerk,
Product Manager AXI, Goepel electronic
Among other things, AI is
used in the creation of
inspection programmes
and defect classification.
The goal: to
reduce effort and save
costs. Personnel resources
can be deployed elsewhere
in the company
AI evaluation of a welded
joint in the X-ray image
directly in the production line
Historically, there have been several technological
paradigm shifts in the field of AOI and AXI
systems,” says Andreas Tuerk, product manager for
X-ray systems at Goepel electronic. First, AOIs employed
orthogonal cameras with illumination variants.
Then oblique cameras and more sophisticated
illumination of different wavelengths and directions
were added. After that, 3D imaging technology was
integrated to evaluate solder joints even more reliably.
AXI systems have undergone a comparable
trajectory. The vertical (2D) and oblique (2.5D) radiography
of an assembly, mostly with analogue image
intensifiers, gradually developed into 3D X-ray systems
for solder joint inspection across several layers.
The advent of 64-bit technology and powerful digital
x-ray detectors then made AXI fast enough to use in
the production line. “Until now, any fundamental
Source: Tina Dietrich/Göpel
Source: Göpel electronic
52 EPP Europe » 11 | 2023