Fiber Sensing technologies for Critical Infrastructure monitoring


Milorad Sarić
IBIS International


ABSTRACT - Distributed Fiber Optic Sensing presents a different use of optical fiber. Fiber is traditionally used as telecommunication medium, but with this technology it converts into thousands of virtual sensors. The underlying solution leverages specific Optical Time Domain Reflectometer technology to sense subtle changes in the fiber optic cable index of refraction that is a result of changes in the cabling temperature, vibration and/or lateral strain. Numerous applications range across industries and allow early detection and location of fiber aging, overstressed cable detection, pipeline leakage, hotspot/icing, ground movement impact, third party intrusion, electrical arcing or flashover.