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.
出处
《仪表技术与传感器》
CSCD
北大核心
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)
