Dec 04, 2009. /Lesprom Network/. Metso has launched a new ultrasound-based fabric positioning solution, called UltraEdge, the company said in a press release received by Lesprom Network. UltraEdge is Metso’s new non-contacting fabric edge tracking solution for fabric control on paper and board machines. Problems with fabric control have direct financial effects, such as loss of felts or dryer fabrics and machine downtime needed to replace them. The operation of UltraEdge is based on ultrasound technology, which eliminates all tracking-related abrasion and wear at the fabric edges. The sensor transmits high-frequency ultrasonic sound bursts, with the help of which the distance of the fabric edge from the sensor can be calculated. Fabric color and composition have no effect on the measurement. UltraEdge is designed for both press and dryer section fabric control on all paper and board machines. It can be used for edge tracking with both pneumatic and electromechanical guides. The dryer section application is designed for dryer hood conditions.