Abstract
A sensor fusion system has been developed in order to characterize nano fiber webs under mass production. The fusion system consists of high magnification microscope and CCD(Charged coupled device) camera combination system for web images acquisition and the two laser displacement sensors for thickness measurement. Since the images obtained from an optical microscope represent only web surface, a scale factor (the ratio of depth of focus and thickness) has been introduced to characterize the web structure as a whole. The web structures by the microscope have been compared to those by liquid flow porometer, especially in pore size distribution. It has been shown that those two structures have a strong correlation, indicating that scaling of a single layer web structure can be an effective estimation for the structure of the thick fiber webs.
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