基于C8051单片机的光纤气体检测系统设计  

Design of fiber-optic gas detection system based on C8051

作　　者：杨芯[1] 曹家年[1] 邵欢[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2010年第7期64-67,共4页Applied Science and Technology

摘　　要：以C8051单片机为平台介绍了光纤气体检测系统的实现.文中以甲烷为待测气体,利用傅里叶级数分解对气体吸收信号进行分析,并利用一次谐波信号检测甲烷气体浓度.文中对气体检测系统各模块的功能进行分析,详细分析了数据采集与处理部分的实现,设计了相应软件流程,对测试结果进行分析.系统实时性好,在煤矿瓦斯气体监测领域有广泛应用前景.Fiber-optic gas detection system based on MCU C8051 is analyzed in this paper. Methane is chosen as the target gas. The absorption signal is analyzed by Fourier series decomposition theory. The first harmonic is chosen to determine the concentration of methane gas. The functions of different modules in the system are explained, and the application of data acquisition and processing module is described and corresponding flow of software is designed. It has the wide application prospects in monitoring of methane gas in coal mine.

关 键 词：气体检测 波长调制 谐波检测 C8051 

分 类 号：TN929.1[电子电信—通信与信息系统]