基于光谱吸收的家居天然气泄露检测系统设计

Design of detection system based on spectral absorption of home natural gas leak

介绍了家居天然气泄露检测的重要意义,并对其主要气体成分甲烷的吸收谱线进行了分析,确定了测量光谱进行最小二乘拟合方案,给出了家居天然气泄露检测的单点检测系统架构。对单点家居天然气泄露检测光纤传感系统的各部分进行了设计,并给出了设计原理和器件选择。实验测试结果显示系统具有良好的稳定性、灵敏度和分辨率。

Described the significance of home natural gas leak detection, analyzed main absorption lines of methane gas composition to determine the least-squares fitting program measured spectntm, given the home gas leak detection system detects a single point structure. Designs the single household gas leak detection op- tical fiber sensing system for the various parts, and selected the various parts of the design principles and de- vice. Experimental results indicated that the system has good stability, sensitivity and resolution.