ozone pollution

1、 Photolysis/ozone pollutionPrinciple of collaborative control measurement

The photolysis spectrometer can accurately and effectively calculate the photolysis rate constants of the main chemical substances related to photochemical reactions, including NO2, HONO, HONO2, HCHO, H202, etc. The probe made of Spectralon optical material is used for real-time observation of the solar spectrum in the photochemical reaction band from the solar field of view. The observation data is stored in the spectrometer through a fiber optic connection, and the computer program calculates the photolysis rate constants of different species according to the implanted algorithm. This instrument has a high degree of integration and low maintenance, and can real-time obtain the photolysis rate of major photochemical reactants in the atmosphere.

2、 Photolysis/ozone pollutionCharacteristics of Collaborative Control

High degree of system integration, independently developed software system;

The integration time is as low as 3.8ms, effectively avoiding detector saturation;

The optical resolution (FWHM) is 0.5nm;

Adopting a meta linear CCD array detector, new operating software, and heat exchange technology.

3、 Technical parameters

Measurement of substance types: J (NO2), J (HONO), J (HONO2), J (HCHO), J (H202), and J (O1D), etc;

Probe field of view: 180 °;

Band range: 200-1100 nm; resolution: 0.4-0.5 nm; stray light: 0.04%;

Detector type: CCD linear array, 2 * 2048 pixels; Sensitivity: 310000;

Integration time: The integration time of the spectrometer is as low as 3.8ms;

Observation time frequency: User customizable, with a minimum resolution of 1 second

Rated voltage: 220VAC; Rated power: 400W; AC frequency: 50Hz.

Environmental temperature: -15 ℃~60 ℃; Relative humidity: 0~99.99% RH.