Abstract
In this paper, a fiber optic modal domain sensor system for the evaluation of bridge pavement samples is developed. The sensing principle based on intermodal interference is analyzed. The method of embedding and surface-mounting sensors within or on the concrete pavements is presented, and the test results of the pavement samples are given. The experiments show that the fiber optic sensor system is an effective means for evaluating concrete pavements and monitoring the cracks and damage of concrete structures in-situ.
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