应用光学, 2018, 39 (1): 151, 网络出版: 2018-03-15   

FBG多功能传感系统集成与应用

Integration guidelines and application of FBG sensing system with multiple functions
作者单位
1 昆明理工大学 建筑工程学院,云南 昆明 650500
2 云南博航交通科技有限公司,云南 昆明 650000
3 华能澜沧江水电股份有限公司,云南 昆明 650214
4 昆明理工大学 信息工程与自动化学院,云南 昆明 650500
摘要
为充分发挥光纤光栅(FBG)传感系统复用能力,可同时对传感光路各个传感器的光信号进行有效识别,且为传感器设计和加工提供依据,基于FBG传感原理,从系统集成及复用能力优化的角度,探讨波分复用传感器设计方法,以及节点传感器结构和灵敏度设计原则与标准,并将提出的原则等应用于某实际工程光纤监测系统。传感系统在运行过程中,获得了较为可靠的监测数据,分布式光纤和点式电测技术测试结果相差6%左右,进一步表明临近光纤传感器没有出现传感信号串扰现象,为工程施工和安全维护提供参照。
Abstract
In order to make full use of multiplexing capability of fiber Bragg Grating(FBG) sensing system while the optical signal of each sensor along sensing optical can be detected effectively and to provide basis for sensor design and manufacture,based on FBG sensing principle,aiming at the system integration and optimization of multiplexing capability of the sensing system, the design method of wavelength division multiplexing and the design principle as well as criteria of node sensor structure and sensitivity were proposed and applied to the optical monitoring system of a real engineering.During working of the sensing system,reliable monitoring data about the engineering was obtained.Results show that the difference between monitoring results measured by FBG sensors and those from point-type electric instruments is about 6%,further indicating that there is no sensor signal crosstalk near the optical fiber sensor,which provides a useful reference for the engineering construction and safety maintenance.

吴永红, 王忠, 张海明, 李祥俊, 李川, 赵卫冬. FBG多功能传感系统集成与应用[J]. 应用光学, 2018, 39(1): 151. Wu Yonghong, Wang Zhong, Zhang Haiming, Li Xiangjun, Li Chuan, Zhao Weidong. Integration guidelines and application of FBG sensing system with multiple functions[J]. Journal of Applied Optics, 2018, 39(1): 151.

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