Optical Bi-Sensor-Method for In-Line Measurement of Objects with large Aspect Ratios

摘要

At the Chair Quality Management and Manufacturing Metrology (QFM) a prototypic optical measurement method for in-line measuring of extruding with 800℃ and movement speeds up to 10 m/s has been investigated and evaluated in the shop successfully [1]. 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 urn 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.