Atmospheric NO2 detection system based on electrochemical transducer
A detection system and sensor technology, applied in the direction of electrochemical variables of materials, etc., can solve the problems of simplicity, precision, portability, many interference factors, complex structure, etc., to achieve a convenient graphical programming environment, avoid noise interference, command cycle short effect
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[0014] The present invention will be described in detail below in conjunction with the drawings:
[0015] Such as figure 1 Shown, an atmospheric NO based on an electrochemical sensor 2 The detection system includes a sensor module, a data acquisition and processing module, and a human-computer interaction visualization module. The sensor module is connected to the data acquisition and processing module, and the data acquisition and processing module is connected to the human-computer interaction visualization module; the sensor module uses British Alphasense Company's NO 2 -B43F model four-electrode electrochemical sensor, including four electrodes: working electrode, counter electrode, reference electrode and auxiliary electrode, NO in the atmosphere 2 Diffusion into the sensor and a reduction reaction occurs at the working electrode. The output of the working electrode and NO 2 NA current signal proportional to the concentration, the auxiliary electrode and the working electrode ...
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