The paper also gives a detailed account of the working principle of the CO gas sensor and its application,along with the use of A/D conversion chip ICL7135,nonlinear signal processing for the sensor and digital filtering in the data acquisition.

• 详细给出了CO气体传感器的原理结构及使用方法 ,A/D转换芯片ICL7135在系统数据采集中的应用 ,传感器非线性信号处理以及系统的数字滤波方案