Introduction:

Atmospheric Ozone Detection Lidar is based on the principle of differential absorption and uses the absorption characteristics of ozone to measure the concentration distribution of gas. The laser radar emits one or several pairs of different wavelengths of pulsed light to the atmosphere at a high repetition rate. The selected wavelength pairs are very close, one of which is located at a position where the ozone absorption is strong, and the other wavelength is located at a weak absorption of ozone. The position of absorption, using ozone to absorb the difference between the two laser wavelengths (difference between the two wavelengths of light signal attenuation), determine the concentration of ozone on the common path of the two pulsed lasers, thereby realizing the detection of the temporal and spatial distribution of ozone. The atmospheric ozone detection laser radar consists of three parts: the transmitting system, the optical receiving system, and the detecting and collecting system.

Features:

1. All solid-state laser, single-mode spot output, high single-pulse energy, effective detection distance;

2. Adopting the transceiver integrated telescope receiving system, coaxial design, effectively reducing the blind zone;

3. The detector has a sensitive UV response, and the lower limit of ozone monitoring can reach ppb level;

4. High-speed data acquisition card with high spatial and temporal resolution.

5. Integrated optical machine design structure

6. The spectroscopic system uses a grating spectrometer to make the optical system run stably for a long time;

7. The laser system adopts water cooling mode, which has good heat dissipation and low vibration.

8. Long service life

9. The Raman frequency transfer tube has a single service life of up to 3 years;

10. The flash is used up to 80 million times.

Technical Parameters:

Laser: Nd:YAG

Receiving telescope: Cassegrain type

Spatial resolution: 30 300m adjustable

Time resolution: 5 30min adjustable

Detection sensitivity: better than 3ppbv

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