Ultraviolet absorption spectrum gas analysis technology and chemometrics algorithm are the advanced on-line analysis methods for NOx and other gases at present, with the detection limit of 1mg / m3;

By using holographic grating and diode array detection, a complete continuous absorption spectrum is obtained with high resolution, low detection limit, small temperature drift and fast response time;

There is no condensation process, which can avoid the low measurement caused by the absorption of SO2 by condensed water, and can truly reflect the working conditions;

No heat tracing tube, fast response time and low cost;

Compared with the extraction method, the analyzer has the advantages of accurate measurement, high reliability, low investment cost and fast response;

Compared with the in situ method, the analyzer has the advantages of on-line calibration, small fluctuation of measured value, high reliability and simple maintenance.

Application scenarios: coal fired power plant, garbage power plant, cement plant, glass plant, lime plant, ceramic plant, sintering plant, coke oven, desulfurization process, denitration process and other exhaust emission monitoring and process control.