Research on Reliable High-speed Train Axle Temperature Monitoring System based on Fluorescence Optical Fiber Temperature Sensor

Abstract

The platinum resistance temperature sensor which is widely used in high speed train has the problem of reliability, and usually caused train delay. This paper presents a reliable high-speed train axle temperature monitoring system based on fluorescent optical fiber temperature sensor, and it has the advantages of accurate temperature measurement, good versatility, simple principle, and low cost. The fluorescent decay effect is used to measure the temperature, and the optical fiber is used to transfer the fluorescent signal, in order to overcome the failure of insulation, water, and electromagnetic interference (EMI). The system shows good accuracy and reliability in the type test, and will be used on the track engineering vehicle to get a real test.