Development of rail covered sensor system embedded with FBG sensor for wheel weight monitoring

초록

In this research, we evaluated the performance of a new sensor system embedded with FBG(Fiber Bragg Grating) sensor to measure the wheel load of the train during train passage. Sensing element was designed to contact with the railway wheel on the rail. Two FBG sensors were embedded in the sensing element which makes contact with the railway wheel and rail, respectively. Wheel weights were measured using high speed FBG interrogator connected with the sensing element in real time when the train moved 4 times repeatedly on the sensing element. From this experiment, we demonstrated the feasibility of wheel weight sensing system using FBG sensor.