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Fibre Eye Composite Fibre Inspection System
 Composite Automation
 Carbon Fibre Composite Handling
 Composite Inspection
 Machine Vision
 Motion Control
 3D Labelling Line
 Software Development
Fibre Eye Composite Fibre Inspection System

Profile capture @400 fps

Typical application speeds:

Path Speed Resolution in the direction
of travel
Scan Res Height Res
1.25mm 55um 27um
0.63mm 55um 27um
0.25mm 55um 27um

FibreEYE Composite Fibre Inspection System

The ‘FibreEYE’ inspection system is a state of the art system designed for in-process verification of the composite fibre deposition process.

It utilises a very high speed camera to verify the deposition integrity of glass or carbon fibre tows or fabrics into a mould tool. In an Advanced Fibre Placement (AFP) scenario the system is mounted alongside or in line with the deposition head and continuously monitors for features such as gaps, overlaps, twists and bridging. In a fabric draping situation the system is mounted on the fabric gripper or on a secondary robot and can be used to verify fibre volume fraction and edge location.

Logged defects are stored in a manufacturing database along with their location and defining characteristics.

How it Works

The inspection system is deployed on an appropriate motion stage which is used to scan the unit over the surface to be inspected. The system operates by using triangulation techniques to generate a detailed 3D profile of the component surface. Proprietary algorithms then normalise the profile to compensate for geometric misalignment before analysing the data looking for surface anomalies. Each anomaly type effectively has a signature that the algorithms look for amongst the surface information. When an anomaly is discovered it is classified according to its type and details related to its location and extent are generated. Anomalies that exceed configurable thresholds are written to a defect database for traceability and future analysis.

Fibre Eye Composite Fibre Inspection System

Feature Detection

The system is designed to detect the following surface anomalies:

  • Gaps
  • Twists
  • Fibre Orientation
  • Edge Location
  • Fuzzballs
  • Overlaps
  • Bridging
  • Fibre Volume
  • Foreign Object Detection

These features can potentially span more than one scan width. Adjacent scans are analysed and features spanning more than one scan are concatenated into a single anomaly.

Fibre Eye Composite Fibre Inspection System

Triangulation Technology

The use of triangulation technology coupled with an optimised light source and optics enables rapid generation of surface information with minimal data drop out. This helps simplify the pre-processing required by the analysis algorithms which in turn enables fast scan speeds and inline analysis. Commonly available commercial scanners suffer with excessive data dropout as a result of material characteristics, an effect that seems to get worse as scan speeds get higher. By maintaining control over the lighting and optics we are able to optimise them for monitoring composite materials.

Thickness Measurement

FibreEYE allows for intelligent fibre density analysis throughout the lay-up process.

Real Time Result Analysis and Display

The FibreEYE system features a distributable process architecture allowing complex measurement and analysis operations to be distributed over multiple processors and/or servers for faster results and feedback, meaning less labour time and easier access.

Image Normalisation

If the imaging system is not scanned perfectly along the system scan axis internal normalisation algorithms detect this and automatically rescale and realign the generated surface profile in real time to accurately reflect the nature of the scanned part.

Pose Compensation

In an AFP environment the primary focus of the deposition head is in laying the material into the mould. This can result in levels of pitch and yaw that would move the deposition region beyond the field of view of the verification system. To compensate for this the system can be supplied with three additional highly dynamic servo stages to steer the module such that the area of interest remains in view.

This product has been under the European FP7 programme Ecomise.

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