TROLLEY WIRE INCLUDING OPTICAL FIBER DISTORTION SENSOR

摘要

PROBLEM TO BE SOLVED: To provide a trolley wire including an optical fiber distortion sensor capable of detecting friction of the trolley wire with high accuracy in a long section for a long period of time. SOLUTION: The optical fiber distortion sensor 20 is stored in a sensor storage groove 14 extending along a trolley wire longitudinal direction. The optical fiber 22 is internally capsulated with a gap by a metal tube 24 in a negative extra length state. The metal tube 24 is fixed on the trolley wire body 10 in a state in which tension is given. The optical fiber 22 is intermittently fixed on the metal tube 24 with a distance in a longitudinal direction thereof. COPYRIGHT: (C)2007,JPO&INPIT