【作者】 吝涛； 陈星； 林然； 王平；

【Author】 LIN Tao CHENG Xing LIN Ran WANG Ping (State Specialized Laboratory of Biomedical Sensor,Key Laboratory of Biomedical Engineering of Ministry of Education of China,College of Biomedical Engineering and Instrument Science,Zhejiang University,Hangzhou 310027,China)

【机构】 浙江大学生物传感器国家专业实验室生物医学工程教育部重点实验室,生物医学工程与仪器科学学院；

【摘要】 介绍了一种基于 MSP430微处理器的便携式甲烷报警检测仪的设计与实现。仪器以催化燃烧式传感器为检测元件,可以准确地对甲烷浓度进行现场实时测量,并将测量结果及当前时间保存。当空气甲烷含量超过预设报警值时,采用声光报警。仪器具有与 PC 机通信的功能,通过串口可将保存的历史数据输出给 PC 机,通过管理软件实现历史数据的回顾与整理。仪器测量电路具有通用性,配合不同气敏元件适当调节参数就可实现对多种气体的测量。更多还原

【Abstract】 A portable quantitative detector is designed for methane gas with thermal catalytic sen- sor.The detector based on MSP430 consists of analog signal regulation,human-machine inter- face,data storage and communication module.It can detect the gas concentration conveniently and in real time,and be configured by the buttons.The result can be displayed by LED and be saved in EEPROM at the same time.The result also can be transmitted to PC via UART for data storage and management.The detector has the functions of sound and light alarm,voltage moni- toring,real-time display with the features of small size,high sensibility,quick response and port- able,it can be used for multi-gas measurement by adjusting some data.更多还原