基于FPGA的光纤光栅传感解调系统设计  

Design of Fiber Grating Sensor Demodulation System Based on FPGA

作　　者：周明[1] 武向农[1] 

机构地区：[1]上海师范大学信息与机电工程学院,上海200234

出　　处：《计算机与现代化》2016年第11期122-126,共5页Computer and Modernization

基　　金：上海市自然科学基金资助项目(13ZR430400);上海市教育委员会科研创新项目(14YZ070)

摘　　要：设计一款FPGA的光纤光栅传感解调设备,实现光纤光栅传感的低成本高速解调。该光纤光栅传感解调设备由数据采集和A/D模块、FIR数字滤波模块、数据缓存模块和显示模块4大核心模块组成。系统由FPGA主控模块为各个子模块提供全局系统同步时钟。与现有的基于FPGA的光纤光栅传感解调仪相比,设计所需元件均嵌在同一块FPGA开发板上,不仅降低了解调仪的成本而且提高了系统的集成度。实验验证,系统的数字信号处理模块设计合理正确。最后,提出了设计的一种应用,具有一定的实用意义。In order to achieve the low-cost, high speed and high precision fiber grating sensing demodulation, the paper designs a fiber grating sensor demodulation system based on FPGA. The system includes the data collection and A/D module, the FIR digital filter module, the data cache module based on SRAM and the display module. The system provides a global system syn- chronization clock by the FPGA control module for each sub module. Compared with the conventional fiber Bragg grating sensor demodulation device based on FPGA, the required components of design are in the same piece of FPGA development board. It not only reduces costs but also improves the tone of the instrument system integration. By system experimental verification, the fiber grating sensor demodulation system based on FPGA is successful. Last, an application is proposed about the system, it shows the system has certain practical significance.

关 键 词：FPGA 信号采集 光纤光栅传感 解调系统 

分 类 号：TP212.2[自动化与计算机技术—检测技术与自动化装置]