Embedded Fiber Optic Crack Sensor for Reinforced Concrete Structures

摘要

A distributed fiber optic sensor is developed for embeddment in con - crete structures. The sensor principles are simple, and, therefore, practical for crack detection and deformation measurement in civil structural applications. The distributed sensor developed herein operates based on the intensity measurements of optical power. The sensor consists of a number of individual segments on one line, with gage lengths designed according to the structural and materials requirements.