A study of Air Blown Fiber for a Long Distance Tube

摘要

To extend the installation length of optical fiber unit for ABF system, we have studied the blowing performance and found out that the blowing velocity of optical fiber unit is explained by the calculated viscous blowing force at the inlet of tube caused by compressed air. Using this relation, we can estimate the blowing velocity provided that the tube length and the inner diameter of tube are decided. And in our experiment, we optimized the outer diameter of 6-fiber unit and succeeded to blow it into the 3000m tube within 2 hours at the pressure of 10kg/cm~2.