基于ARM的FBG传感解调系统的研究

Study on FBG sensing demodulation system based on ARM

为了探索光纤布拉格光栅(FBG)中心波长检测方法,结合嵌入式技术,设计开发了一种基于ARM的FBG传感信号处理系统。系统主要包括数据采集、数据处理、数据存储等模块,能够完成FBG反射谱信号的数据采集、中心波长检测、数据显示等功能。系统采用C语言进行编程实现,并在硬件系统上进行了测试。结果表明,系统能够满足FBG波长检测相关功能要求,同时解调的速度和精度都有所提高,为基于ARM的低成本、微型FBG传感系统的实用化提供了很好的参考。

In order to further improved detection method of fiber bragg grating（FBG） center wavelength,combined with the currently popular embedded technology,an FBG sensor signal processing systems based on ARM has been designed,which includs data acquisition,data processing and data storage module.The function like data acquisition,the center wavelength detection,data display and save of FBG reflection spectrum signal can be finished.The system is programmed using the C language,and is tested on the hardware platform.The results show that the required relevant function for the FBG wavelength detection of the system can be completed.Meanwhile,speed and accuracy of demodulation have been improved.A good reference has been provided for the implementation of the low-cost and miniature of FBG sensing system based on ARM.