光纤F-P和FBG传感器通用解调系统的研究  

Investigation of General Demodulation System for Fiber Fabry-Perot Sensor and Fiber Bragg Grating Sensor

作　　者：杨广学[1] 李岩峰[1] 康守强[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150040

出　　处：《光电技术应用》2010年第1期12-15,共4页Electro-Optic Technology Application

摘　　要：针对目前不同种类传感器在建筑结构及其工作环境进行实时监测应用上的实际情况,提出了一种利用可调F-P滤波器对光纤法珀传感器和光纤布拉格光栅传感器通用解调方案,研究了解调系统的组成和对传感器的解调原理.初步实验结果表明,系统能够对上述2种传感器进行解调,并具有复用能力,光纤法珀传感器的应变解调精度在2με以下,光纤布拉格光栅传感器解调精度在0.5με以下,是一种低成本、通用的解调系统.Regarding the present situation of different types of sensors being used in real-time monitoring building structure and its working environment, a general demodulation system for fiber Fabry-Perot sensor and fiber Bragg grating sensor based On fiber Fabry-Perot tunable filter was described. The structure of this system and its principle of demodulating these fiber sensors were studied. The experiment shows that this system can demodulate these fiber sensors accurately and effectively, and it also have a multiplexing capability. The demo- dulation accuracy of fiber Fabry-Perot sensor is under 2με, and the demodulation accuracy of fiber Bragg grating sensor is under 0.5με.

关 键 词：光纤光栅传感器 光纤法珀传感器 可调法珀滤波器 

分 类 号：TN256[电子电信—物理电子学] TP212.14[自动化与计算机技术—检测技术与自动化装置]