摘要
根据Beer-Lambert定理和红外吸收原理,研究了红外传感器的工作原理,设计了一种CO2气体体积分数测量装置。简要说明了整个装置的架构,硬件设计和软件程序设计。并利用Matlab对体积分数在0%～20%之间的测量数据进行了拟合,相关系数在0.98以上。该测量装置可对CO2体积分数进行实时准确的测量,稳定性好、体积小。
The working principle of infrared sensors is studied and a gas volume fraction measuring device for CO2 is designed, according to Beer-Lambert law and infrared absorption principle. A brief description of the whole architecture of the device is illustrated, including the design of hardware and software. Matlab is used to fit measurement datas of volume fraction ranges from 0 % -20 %, the correlation coefficient achieves above 0.98. This device can measure the volume fraction of CO2 accurately in real time, and has good stability and small in size.
出处
《传感器与微系统》
CSCD
北大核心
2011年第11期115-117,共3页
Transducer and Microsystem Technologies
