【摘要】 基于FBG传感器的光谱仪具有对矿井甲烷气体进行分析的功能,分析人员借助计算机技术对FBG吸收谱进行寻峰确定FBG波长,通过FBG波长的变化来分析矿井空气的甲烷浓度。提出了一种改进的Gaussian寻峰算法—非匀称采集高斯寻峰算法。实验证明这种改进的Gaussian寻峰算法能较精确地确定峰值位置,提高了甲烷浓度测量的精度。更多还原

【Abstract】 The spectrograph based on the FBG sensor can analyze the composition of the methane gas.Analysts peak search on FBG absorption spectrum to determine the Bragg wavelength by computer technology, by analyzing the change in FBG wavelength component to analyze the content of methane.Propose an improved algorithm for Gaussian fitting algorithm-non-uniform sampling Gaussian fitting algorithm. The results show that the improved algorithm Gaussian fit can determine the peak position more accurately, it improves the accuracy of measuring the concentration of methane.更多还原