MEASUREMENT OF YARN DIAMETER AND TWIST ANGLE WITH IMAGE PROCESSING SYSTEM

Abstract

A special image processing system was developed by the Department of Polymer Engineer- ing and Textile Technology TU Budapest and the KFKI Research Institute for Materials Science Budapest supported by OTKA Fund of Hungary. The system is suitable for measuring the diameter of fibres and yarns. The hardware system based on a Projectina Projector Microscope and a CCD camera connected with a image aquisition card. In addition to the testing of fibres and yarns the menu-driven software frame provides also general image processing services and possibilities for special statistical evaluations. To demonstrate the applicability of the system some kinds of yarn were tested.