The purpose of this activity is to streamline the fiber installation and maintenance by using small radio transmitters. The activity will develop cost miniaturized radio transmitters.
Before switching on the buried ducts a quality control is done which ensures that the product is intact and has no sharp bends or gaps in the joints that stops the fiber blowing. One technique to assure the quality of a product is to blow a radio probe through the duct immediately after the directly after it has been buried. This radio probe diameter and length is proportional to the diameter of the duct which allows it to get stuck in the duct radius is too tight somewhere if the tube has been squeezed during the burial. If the radio probe gets stuck it sends out a constant signal and the position can be determine manually by holding a receiver unit above ground, which indicates when the receiver unit is located above the probe. This is a standardized procedure that works well on traditional products. Through development the fiber ducts has gotten smaller and smaller and today there are no radio probes for the smallest duct sizes that also becoming the most common duct to place at the end customer.
Partners: ICT network, Fiber Optic Valley, Mittuniversitetet