摘要
该仪器主要用于检测煤矿井下环境气体中的甲烷浓度,运用了热催化原理。仪器采用差分运算放大电路对小信号进行放大,由AVR单片机完成对信号的采集和处理,除测量显示、声光报警基本功能外,还具有时间显示,数据存储、回放,灵敏度测试等多种功能。
This instrument is used with the principle of catalytic incineration to measure the concentration of methane in coal mine. It uses difference amplifier to amplify the small input signal, the AVR single chip CPU also is used for single processing. It has the features of time display, data storage, and scale test function besides the basic function of measuring display, sound and light alarm.
出处
《山西电子技术》
2006年第6期71-72,共2页
Shanxi Electronic Technology
关键词
便携
智能
甲烷检测
报警仪
portable
intellectual
methanophone
alarm
