The behavior of a novel raw material-encapsulated FBG sensor for pavement monitoring

Technology on pavement monitoring has been paid more and more attention by governments, engineers and scholars. And more excellent technologies have in dire need with the development of road engineering. Therefore, a novel raw material-encapsulated Fiber Bragg grating (FBG) strain sensor is put forward, thinking over outstanding advantages of fiber Bragg grating and perfect incorporation between coating layers and host layers. Numerical analysis and experiments have been done to inspect behavior of the sensing system. Results indicate that it can well detect the actual performance of pavements, and the sensor presents a high-precision, real-time and long-term monitoring, owning function of road disaster warming, which promise it an extensive future in pavement monitoring.