新型嵌入式甲烷无线检测仪的研制  

Design of Novel Wireless Optical Fiber Detector for Methane

作　　者：张毅[1] 苗玉杰[1] 王红芬[1] 

机构地区：[1]中国环境管理干部学院,河北秦皇岛066004

出　　处：《仪表技术与传感器》2012年第3期36-37,40,共3页Instrument Technique and Sensor

摘　　要：提出了一种基于嵌入式计算机技术和ZigBee无线传感网络技术的新型甲烷无线检测仪设计方案。采用单只普通LED为光源,通过嵌入式微计算机系统控制完成交替滤光斩波来得到双波长入射光束,根据甲烷对光线的吸收原理计算气体浓度和变化率;通过ZigBee实现仪器组网和数据远传。测试表明,该检测仪具有检测精度高、反应速度快、组网灵活和实用性强等优点。In order to solve the shortcomings of the detection of methane,a novel implementation of optical fiber methane detector was designed based on the embedded microprocessor and ZigBee wireless technology.The LED was used as the light source.The embedded microprocessor MCU was used to realize the automatic alternate chopping and the calculation of gas concentration and its rate.ZigBee technology was used to realize the data remote delivery.Experiment results show that the detector has the characteristic of high sensitivity and high reaction speed.It allows for more flexible networking,more effective transmission system,and it has good practicability.

关 键 词：嵌入式 甲烷 ZIGBEE 无线 检测仪 

分 类 号：TN304.92[电子电信—物理电子学]