基于C8051f040与传感器阵列的瓦斯浓度实时监测系统  

Real-time Monitor of CH4 Thickness Based on C8051f040 MCU and Sensor Array

作　　者：王正宏[1] 马以武[1] 张早春[1] 

机构地区：[1]中国科学院合肥智能机械研究所传感技术国家重点实验室

出　　处：《仪表技术与传感器》2007年第8期26-28,共3页Instrument Technique and Sensor

基　　金：国家自然科学基金资助项目(50534050)

摘　　要：利用高性能、低功耗C8051f040单片机设计一种新型信号采集、处理电路,通过多通道模拟多路开关CD4067实现传感器阵列中的多个传感器分时工作,并使用上位机显示程序实现瓦斯浓度的实时监测。实验表明:该系统可以实现多个传感器分时工作,并具有较高的精度,在保证每个传感器标定周期为2星期的条件下,8个传感器组成的传感器阵列的标定周期达到16个星期。Designed a kind of new signal acquisition and processing with high function, low power consumption C8051f040 MCU, realized that the multi sensors worked time-sharing by multiplex switch CD4067, then realize real time monitor of CH4 thickness with host computer program . The experiment indicated that the circuit could realize multi sensors working time-sharing, and could get higher precision, and calibrate period reach 16 weeks sensor arrays made up of 8 sensors, in condition that every sensor＇s calibration period reach two weeks.

关 键 词：瓦斯传感器阵列 C8051F040单片机 多路开关 实时监测 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]