基于风机叶片应力监测的光纤光栅解调电路的研究与设计  

Research and Design of Fiber Bragg Grating Demodulation Circuit Based on Fan Blade Stress Monitoring

作　　者：孙智鹏 管迎春 何君 陈平 田勇 SUN Zhipeng;GUAN Yingchun;HE Jun;CHEN Ping;TIAN Yong(College of Intelligent Systems Science and Engineering,Hubei Minzu University,Enshi 445000,China;Hubei Energy Group Qiyue Mountain Wind Power Co.,Ltd.,Enshi 445410,China)

机构地区：[1]湖北民族大学智能科学与工程学院,湖北恩施445000 [2]湖北能源集团齐岳山风电有限公司,湖北恩施445410

出　　处：《现代信息科技》2023年第8期171-174,共4页Modern Information Technology

摘　　要：光纤光栅传感器是传感解调系统的主要感知器件,解调系统能够将传感器感测到的光信号转变为电信号,用于系统后期对数据的处理与分析,以实现解调系统的监测功能。为解决解调系统速度低、价格高、通道少等问题,设计一种基于光纤光栅多通道的解调系统,利用SPI通信协议将STM32与FPGA建立主从机制,通过AD9226与CD4051相结合的方式,实现了高速、高精度、多通道的光纤光栅信号解调。系统最终可以同时扫描16个通道,测量范围为1528~1568 nm。Fiber Bragg Grating(FBG)sensor is the main sensing device of the sensor demodulation system.The demodulation system can convert the optical signal sensed by the sensor into an electrical signal for the later processing and analysis of data in the system to achieve the monitoring function of the demodulation system.In order to solve the problems of low speed,high price and small capacity of demodulation system,a multi-channel demodulation system based on FBG is designed.The master slave mechanism is established by using SPI communication protocol between STM32 and FPGA.Through the combination of AD9226 and CD4051,high-speed,high-precision and multi-channel FBG signal demodulation is realized.Finally,the system can scan 16 channels at the same time,and the measurement range is 1528~1568 nm.

关 键 词：光纤光栅 解调系统 FPGA AD9226 CD4051 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]