用于高温环境的压力式光纤光栅温度传感器设计
2018-07-18
作者：黄嘉，陈富云，邓霄冉，赵振刚，李川
单位：昆明理工大学
摘要：针对传统压力式温度计在实际应用中易受电磁干扰和环境温度影响的问题，设计了一种适合高温工作环境的气体压力式光纤Bragg光栅温度传感器。该传感器在压力式温度计的结构基础上将压力敏感元件替换为传压杆及等强度悬臂梁，建立传感器理论数学模型并进行测温试验，将实测值与理论值进行比较，证明该传感器的设计可行，可用于有特殊环境要求的温度检测。
关键词：光纤Bragg光栅；温度传感器；压力式；静态特性
中图分类号：TG806；TP212文献标志码：A
Pressure Type Fiber Bragg Grating Temperature Sensor for
High Temperature Environment
Huang Jia，Chen Fuyun，Deng Xiaoran，Zhao Zhengang，Li Chuan
Abstract:The traditional pressure thermometer is susceptible to electromagnetic interference，and the accuracy is easily affected by the environmental temperature in practical application.A gas pressure type fiber Bragg grating temperature sensor under high temperature working environment is designed.The sensor is replaced pressure sensitive element with a pressure transmitting rod and cantilever based on the structure of pressure type thermometer.The theoretical mathematical model of sensor is established and the temperature measurement experiment is carried out.By comparing the measured values with the theoretical values，it is proved that the design of the sensor is feasible and it can be used for temperature detection with the special requirements of environment.
Keywords:fiber Bragg grating；temperature sensor；pressure type；static characteristics