摘要
本文设计了一种新型的甲烷多点监测系统,该系统采用分路器将光源出射光分别送至各个气室单元,利用时分复用原理让各气室信号合路传输,然后对解复用后的各路信号进行数据处理,得到待测的浓度信息,实现甲烷浓度的多点实时监控。该系统具有谐波检测技术的优点,且时分复用的引用使得线路的铺设及远程监控更加方便。该系统可实现煤矿等场所的甲烷气体的分布式监测。
In this paper, a multipoint methane sensing system is built based the emergent light by optical splitter, using the timedivision multiplexing processing the signals to get the harmonic amplitudes, thus we can realize system inherit the advantages of TDLAS, and using time division multiplexing lay the optical cable and do the remote monitoring. It can be used in the mine on this technology. It divides to merge the signals, and then the multipoint monitoring. This system can make it easier to and some other places.
出处
《电子测试》
2014年第12期42-44,共3页
Electronic Test
