一种快速光纤光栅匹配解调系统的研究(本期优秀论文)

摘要

利用一种新型快速光纤光栅匹配解调方法实现了光纤光栅传感信号的高精度大范围快速解调.通过对两组并联匹配光纤光栅的组合扫描,加快了信号的解调速度,解决了双值问题,减弱了光纤光栅啁啾效应的不良影响.以数字信号处理器驱动并解调匹配光纤光栅,解调后信号由上位机进一步处理和显示,使得系统性能得到提升和优化.实验结果与理论分析取得良好的一致性.%A novel fast fiber grating matching demodulation method has been used to realize fast fiber grating sensing signal demodulation of higher precision and larger range. Through two groups of parallel matched fiber grating combination, accelerate the demodulated velocity of detection signal, and solved the double value problems, weakened the effect of adverse effect of chirped fiber grating. The matched fiber grating is drivered by digital signal processor and demodulated by digital signal processor, then demodulated signal get into the PC , by the host computer for further processing and display, the performance of the system upgrade and optimization. The experimental results and the theoretical analysis has good consistency.