基于C8051f040的瓦斯传感器阵列信号采集电路设计  

Design of Gas Sensor Array Signal Acquisition Based on C8051f040

作　　者：王正宏[1] 马以武[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：《自动化与仪表》2007年第4期67-70,共4页Automation & Instrumentation

基　　金：国家自然科学基金资助项目(50534050)

摘　　要：利用高性能、低功耗微控制器C8051f040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敏感元件分时工作,在保证每个敏感元件标定周期为2星期的条件下,8个敏感元件组成的敏感元件阵列的标定周期达到16个星期。实验表明,该电路可以实现多个敏感元件分时工作,并具有较高的测量精度。We designed a kind of new signal acquisition and processing circuit with high function,low power consumption C8051f040 MCU,realized that the multi sensitive unit working at time-sharing by multiplex switch CD4067,calibrate period reach 16 weeks sensitive unit array made up of 8 sensitive units,in condition that every sensitive unit＇s calibration period reach two weeks. The experiment indicated that the circuit could realize multi sen- sitive units working at time-sharing,and could get a higher precision.

关 键 词：瓦斯传感器阵列 C8051F040单片机 多路开关 

分 类 号：TN21[电子电信—物理电子学]