Cross-sectional Shape Factor Characterization for Solid Profiled Fiber Based on Boundary Fluctuation Curve

摘要

Profiled fiber cross-sectional shape analysis is of great significance to textiles quality control and performance. In this paper, a new method of crosssectional shape characterization on fiber shape factor is reported. Different from the traditional method that based on the inscribed circle and the circumscribed circle, our method takes the fluctuation curve from the cross-sectional boundary. After extracting the fluctuation curve, standard deviation of the difference sequence between crosssectional area and the circle's area within each unit region is employed as the index to characterize the shape of the profiled fiber. Experimental results validate that this index can depict the discrepancy degree between the cross-section and the area equivalent circle effectively and sufficiently.