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EKO Multi RIDAR System

EKO LIDAR system is a Multi LIDAR System for the real time profiling of "Temperature", "Humidity" and "Aerosol".

- EKO LIDAR system is an eye safe LIDAR using UV range laser of the wavelength 355nm.
- EKO LIDAR system has been co-developed by EKO Instruments Co., Ltd. and Prof.Takao Kobayashi from the University of Fukui.
- EKO LIDAR system is useful for the meteorological and environmental observation, and is used for seeking the solution for heat island phenomenon and green house effect

Features

- EKO LIDAR system is designed with taking safety into consideration.
- EKO LIDAR system is placed in the air conditioned room. Therefore, the laser equipment and optical parts can be used with high performance.

Measurement principle

- Temperature Temperature profile is measured by detecting the Doppler dispersion of Rayleigh scattering, which is changed according to the temperature.
- Humidity Humidity profile is measured by detecting the Raman scattering intensity of water vapor molecules.
- Aerosol Aerosol profile is measured by detecting the Mie scattering intensity.

Mie scattering, Rayleigh scattering
Raman scattering

 

Measurement results
Temperature profile
(Height : 0 - 5000m,
color scale 0 - 30 deg.C)
Humidity profile
(Height : 0-2500m,
color scale 0 - 100%)


Measurement results

Items Specifications
Laser Nd : YAG THG Third harmonic
Center wavelength 355nm (Eye safe)
20Hz
Telescope Diameter 25cm (UV special coating)
A/D 40M Sample/sec
Measurement height 300m to 5km
Height resolution 20m (lower layer) - 50m (upper layer)
Measured objective Temperature, Humidity and Aerosol
Measurement principle Temperature : Rayleigh scattering
Humidity : Raman scattering
Aerosol : Mie scattering
Measurement time Less than 5 minutes (6000 shot)
Software Measurement software, Analyze software

 


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