Fiber optic nerve systems for materials and structures that can feel pain

Distributed and multiplexed sensing schemes have been studied and developed, recently, in the field of fiber sensor technologies. In the systems, a long length fiber acts a "nerve" for feeling strain and/or temperature distribution along the fiber. Performances of the artificial nerve systems have markedly improved within the last couple of years, in spatial resolution and measurement speed. By embedding the "fiber-optic nerve system" in bridges, tall buildings and aircraft wings these materials and structures can sense damage to prevent disasters.