Use of fiber Bragg grating sensors for fiber optic pavement monitoring system development

A new program dedicated to be the first fiber optic pavement monitoring system in Taiwan is introduced. The overview of the project and the state of sensor design, calibration and test are presented, emphasizing a three phases of sophisticated research study that include novel fiber grating sensor developments, laboratory and field tests, and long-term pavement performance monitoring and analysis. Preliminary results indicate that accuracies of /spl plusmn/ 30 /spl mu//spl epsi/ and /spl plusmn/1.5 /spl deg/C for strain and temperature can be achieved, respectively. Future works is also discussed.