摘要
为了提高二氧化硫浓度测量系统的检测灵敏度,基于微弱信号检测特点,结合相关滤波技术和红外吸收原理,设计了以相关检测技术为核心的微弱信号数据处理电路,提高了系统的检测灵敏度,电路结构可靠、简单、实用。在实验室条件下,对该系统进行了二氧化硫浓度的性能测试,并对实验数据进行了有效的分析和拟合处理,给出了二氧化硫浓度与电压的关系式。
In order to improve the detection sensitivity,combining with Filter correlation technology and infrared absorption principle,the weak signal processing circuit is designed according to correlation detection technology based on detection principle of faint signal,it improves the system measurement sensitivity, the circuit structure is reliable,simple and practical. Under laboratory conditions, the system performance of the SO2 concentration is tested, and the experimental data are analyzed and processed,the relationship of sulfur dioxide concentration and the measure voltage is given.
出处
《信息通信》
2014年第5期69-71,共3页
Information & Communications
关键词
二氧化硫
微弱信号处理
红外吸收
相关检测技术
Sulfur dioxide
Weak signal processing
Infrared absorption principle
Correlation detection technology
