Real Time Health Monitoring Technology to Detect Axle Overheat with FBG Sensor on Board

초록

In this paper, we propose a real time health monitoring technology to detect axle overheat, which use a smart journal box with embedded FBG (Fiber Bragg Grating) sensor. Among the newly designed journal box in our research, the side coupler type was manufactured for this experiment. The temperature sensitivity of FBG sensor was acquired from the center wavelength shift along the temperature by a computer controlled data logger system. The temperature of the FBG sensor was verified with a thermocouple connected to a voltmeter.