Carbon Fiber Composites Inspection with Polarization

CFRP Competence based on state-of-the-art Polarization Algorithms

Polarization cameras, available from a number of different manufacturers, are an excellent addition to your quality control toolkit for carbon fiber reinforced polymers. Our method helps you analyze the quality of raw and recycled materials, detects irregularities in the fabric and automates your visual inspection of components.

Check out the advantages of our method by the following examples of high-resolution polarization imaging for measuring strand orientation:

Intensity image of a region of a finished part. Not much of the fibers can be seen - the fiber orientation is not discernible in the intensity image.

© Fraunhofer IIS
False color polarization image of CFRP fibres

False color polarization image: the color represents fiber orientation, we can clearly see that the fibers are not densely packed and that the underlying layer shines through.

Histogram of the colors: Analyzing the colors gives us the dominant angles of the fibers, the angle between the two orientations and a measure of uniformity.

© Fraunhofer IIS
Polarization imaging shows the orientation of CFRP fibres

Boosted image of the orientation: Some areas can easily be identified in which the fibers are not perfectly straight.

If you're interested in licensing our patented method or if you just want to send us a sample for test purposes - please do not hesitate to contact us at imaging-solutions@iis.fraunhofer.de or just give us a call at +49 9131 776 5147!

Carbon Fiber Composites Inspection with Polarization

CFRP Competence based on state-of-the-art Polarization Algorithms

Carbon Fiber Composites Inspection with Polarization

Researchers deploy polarization camera for carbon fiber inspection

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Stephan Gick