The charge sensing device approach - Sensors for textile machines using the natural electrostatic charge of the yarn

This paper presents the charge sensing device approach for sensors in textile machines. A wide range of sensor application in textile machinery can use a charge sensing device for instance to detect the presence of yarn or the speed of yarn. The charge sensing device approach offers important advantages compared to the state of the art sensor principles and additional cost reducing effects can be expected. In this paper the charge sensing principle is presented and the advantages and disadvantages are discussed. Two examples of “charge sensors” in prototyping and preliminary state for textile machine application are demonstrated.