OPTICAL BI-SENSOR-METHOD FOR IN-LINE MEASUREMENT OF OBJECTS WITH LARGE ASPECT RATIOS

Albert Weckenmann, Johannes Bernstein
Abstract:
At the Chair Quality Management and Manufacturing Metrology (QFM) a prototypic optical measurement method for in-line measuring of extruding with 800°C and movement speeds up to 10 m/s has been investigated and evaluated in the shop successfully. The method combines multiple light-section systems and a shadow system for measuring concave extruding more accurate than before. The measurement uncertainties operate down to 10 µm in measurement ranges of 100 mm. The already evaluated method can fundamentally be used as well for measuring other objects, e.g. with high aspect ratios. The here presented approach shows that the measuring principle can be adapted for flat objects like textiles and carbon-fiber compounds in-process. The results contain information about the set-up, the adjusting, influence quantities, calibration of the measurement system and the user-interface as well as the measurement results and possibilities for further improvements.
Keywords:
optical metrology, data fusion, multi-sensor-measurement
Download:
IMEKO-TC14-2011-30.pdf
DOI:
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Event details
IMEKO TC:
TC14
Event name:
TC14 LMPMI Symposium 2011
Title:

10th Symposium on Laser Metrology for Precision Measurement and Inspection in Industry

Place:
Braunschweig, GERMANY
Time:
12 September 2011 - 14 September 2011
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