Non Destructive Testing of Fabric Weight in the Weaving Process

Abstract Within the German Cluster of Excellence "Integrative Production Technology for High-Wage Countries", at the RWTH Aachen University, self-optimising production systems are investigated. Within this scope, the weaving process is analyzed. Weight per area is a major product quality of woven fabrics. Integration of sensors into the loom to monitor and control the weight per unit area is investigated online. Conducive sensors are not suitable for such a measurement. This is because the sensors are very sensitive to vibrations and changes in humidity of surroundings. X-ray sensors show very good results in monitoring the product quality online. Thus control loop to regulate the fabric weight per area using X-Ray sensors is developed and described in this work.