Design Of Thermally Induced Discoloration Fiber Optic Temperature Sensor And Simulation Of Thermal Properties

Power system is an important guarantee for the development of the national economy, but for the long term the frequent electronic accidents caused huge economic losses to the state. The high temperature of substation cabinet contact resulting in a fire is the most important reason of frequent accidents. Therefore, the effective monitoring temperature on the contacts inside substation is a necessary measure to reduce security risks. This paper analyzed and summarized the existing temperature technical defects, then designed a new type of fiber-optic temperature sensor based on the status of the power system temperature monitoring.The main research contents:The discoloration mechanism of thermally induced discoloration material was introduced and its color experiments were carried out during the test. The principle of optical fiber temperature sensor based on thermally induced discoloration temperature monitoring technology was introduced. Five different structural fiber optic temperature sensor thermally induced discoloration were designed based on thermo chromic materials change color when the mere mention of its optical properties will change. Five different structures which constitute a material sensor were determined based on the finite element simulation analysis. The real products were made by mechanical turning. The impact of ambient temperature and the heat source temperature to the optical fiber temperature sensor was analyzed based on finite element simulation.