Atmospheric NO2 detection system based on electrochemical transducer

The invention discloses an atmospheric NO2 detection system based on an electrochemical transducer, and belongs to the field of atmospheric environmental monitoring. The atmospheric NO2 detection system comprises a sensor module, a data acquisition and processing module, and a man-machine interaction visualized module; the sensor module comprises a NO2 four-electrode electrochemical transducer and a temperature and humidity sensor; the data acquisition and processing module comprises a low noise signal conditioning circuit and a DSP main control unit; the man-machine interaction visualized module comprises a LabVIEW 2015 platform and a sound-light alarming module. Compared with a traditional NO2 detection system, the atmospheric NO2 detection system based on the electrochemical transducer is more concise, small in size and convenient to carry, and is capable of achieving a high-accuracy measurement of NO2 with low concentration of a ppb order in the atmosphere, accurately eliminating interference, caused by z