Laser ceilometer

1.Laser ceilometer product overview

laser ceilometer is a device that uses a laser to determine the height of a cloud ceiling or cloud base and also measures cloud cover and vertical visibility.Laser ceilometer is a post-scattering lidar that adopts the principle of meter scattering.The observation range can reach 12 kilometers, which can effectively measure aerosols, cloud heights, cloud thickness, cloud volume and vertical visibility.It can be applied to complex aerosol research or integrated into large observation networks, and is a representative solution at the highest level of technology for the diversified needs in atmospheric research.

2.Laser ceilometer function application

Aerosol vertical profile, cloud base height (5 layers), cloud layer thickness, vertical visibility, boundary layer height

Among them, the extended type has better performance for mixed layer measurement and aerosol research.

3.Working principle of Laser ceilometer

According to the principle of meter scattering, by measuring the backscattering signal profile of the atmosphere to emit infrared beams, we can judge whether there are cloud layers in the direction of the optical path, calculate the height of the cloud base, the penetration thickness of the cloud layer, the extinction coefficient of the aerosol, the height of the atmospheric boundary layer, and the output vertical visibility when the sky is blurred.By establishing a time series of cloud base height, the cloud volume can be statistically estimated.

The equipment adopts advanced infrared laser remote sensing technology, with accurate measurement of cloud bottom height, rich data products, stable and reliable work, and simple maintenance.

4.Laser ceilometer product features

1.Adopt meter scattering laser technology, the signal transmission power is powerful and stable, and the measurement distance is long.

2.The equipment has penetration measurement, which can measure multi-layer cloud and aerosol data at the same time.

3.Use high-sensitivity optical components to obtain high-precision measurement results: Optical design can satisfy the application of narrowband filters, effectively suppress optical influence, and accurately measure clouds and aerosols during day and night.

4.Dual lens design allows self-testing between lenses to minimize the impact of lens filth.It is not easily affected by the diffuse reflection of particulate matter in the atmosphere, and the sampling accuracy is high, reaching 5m.

5.Reliable operation all day, equipped with a closed metal shell, and an automatic window heating system, and is not affected by foggy days, rainfall or freezing.

6.Friendly operating interface and ease of use, simple maintenance and no consumption devices.

5.Laser ceilometer technical parameters

Measurement parameters			Electrical parameters
Measurement range	15~12000m		power supply	AC100~250V or DC9~36V
Measurement accuracy	＜150m±20m 150m～300m±10% ＞300m±20%		Power consumption	When not heating: ≤15W When heating: ≤100W
Solid target measurement Accuracy	±10m		size
			Casing (Length x Width x Height)	320mm×200mm×380mm
Measurement cycle	15s～300s (adjustable)
			Packaging (Length x Width x Height)	520mm×360mm×430mm
Measurement types	◆Aerosol profile ◆Cloud bottom height ◆Cloud thickness ◆Vertical visibility ◆Number of clouds ◆Low, medium, high, total cloud volume ◆Points Cloud ◆Multi-layered clouds and cirrus clouds can be measured
			weight
			The whole machine	≤12kg
			Detection part	≤6kg
			Working environment
			Ambient temperature	-45℃~50℃
Interfaces and software
			Relative humidity	5%～100%RH
Standard interface	RS232
			Atmospheric pressure	450～1060hPa
Optional interface	RS485
			Model diagram
Data communication	Serial port, fiber optic, Beidou, wireless
Optional software	Visualization software
Data format
MODBUS protocol, ASCII protocol format, China Meteorological Administration Data Dictionary Data Format Agreement.
Laser cloud gloator data format: output interval, date, time, sky condition, number of cloud layers, cloud base height, integral cloud volume, vertical visibility, system status, verification code
User data format: user-defined