Study on temperature monitoring system of electric device based on optical-fiber fluorescent

The on-line temperature monitoring at high voltage electric power equipment is the practical problem that we need to deal with, which is connected to the safety of the equipment running. To the question, we design a multiply optic-fiber and fluorescence temperature metrical system with the ability of early faults diagnosing, which have the function of early diagnosis of faults. The paper also introduces the structure and theory of the system, designs the structure of probe which adapted to use in narrow place, and resolves several problems, such as long-way transmission, multi-points measuring and visual analyzing interface for using. As the especial design of the head of the fluorescent sensor, this system realizes the function of working with all fiber and no power, having tenuous head of sensor probe which could work in small space, enduring high voltage and resisting the disturbance of electromagnetism which could not destroy the insulated ability of the equipment tested and also could not disturb them, even can´t cause exploding and burning, also it has ascendant responsibility, stabilization and precision.