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CE376 – micro LiDAR

The CE376 is the latest compact, eyesafe backscatter LiDAR, featuring outstanding performances for the automated continuous monitoring of aerosols.

It operates in the visible (green) and/or in the near infrared (NIR) with options for depolarization channels for enhanced aerosol characterization.

The rugged, fully integrated system operates without shutdown, any human attendance, authorization, nor maintenance. With its thermal enclosure, the LiDAR can withstand extreme environmental conditions.

The CE376 is particularly easy to install (indoor or outdoor), to transport and even to use onboard a vehicle or a plane.

It is therefore, the perfect solution to monitor industrial dust emissions, urban pollution, volcanic ashes, and all type of aerosol particles.

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FEATURES

  • Aerosol measurements up to 18 km by night time (9 km by day time)
  • Very short blind zone (< 100 m) with an overlap from 1 km
  • Real-time “quicklook” visualization
  • Automatic extinction and backscattering profiles
  • High stability and low maintenance
  • Aerosol characterization for each layer and stratification analysis
  • Planet Boundary Layer (PBL) detection
  • Easy transportation : Outdoor / indoor / mobile operation

 

USER BENEFITS

  • Efficient
  • Operational
  • Cost saving
  • High altitude detection profiles
  • Robust and climate resistant
  • Unattented continuous operation
  • Automatic detection of multiple boundary layers
  • Light and portable
  • Full outdoor installation
  • Low layer detection
  • Eye safe (no radar)
  • Very low spare part cost
  • Automatic calibration
  • 1 PC with real time processing and display
  • No systematic maintenance
  • High metrological stability

 

 PACKAGE CONTENTS

  • 1 compact automatic aerosol LiDAR CE376
  • 1 License of LiDAR control software on a USB key

Note 1: To be powered by mains.

Note 2: The telescope must be kept between +20°C and +30°C and may be installed within a thermal enclosure (not included).

 

  • Air Quality
  • Aviation

Source

Laser Type Green laser: frequency doubled Nd:YAG
NIR laser: pulsed laser diode
Wavelength Green laser: 532 nm
NIR laser <850 nm
Pulse Energy Green laser: 5-10 µJ
NIR laser: 3-5 µJ
Repetition Rate 4.7 kHz
Pulse Width For Green laser < 15 ns
For IR < 200 ns

Optics

Telescope Type Galilean
Telescope diameter 100 mm for both emission and reception
Effective focal length 200 mm
Total beam divergence Emission: 100 µrad, Reception : 200 µrad
Instrument configuration Biaxial
Eye safety Yes

Detection

Detector type APD QE 55% / 70%

Data Acquisition

Data acquisition mode Photon counting.
Data transfer to PC : USB over RJ45/CAT5 cable
Continuous acquisition Yes
Data counting rate 25 Mc/s
Electronic range resolution 15 m gates
Electronic range From 100 m up to 30 km (2048 gates).
Data transfer to PC USB or Ethernet

Measurement Range

Molecular detection** range in typical conditions (AOD @532nm 0.02) with 10 min averaging By night time: 18 km
By day time: 9 km

Retrieved Products

PR² / Ln(PR²) data (after instrumental corrections) Yes
Stratification analysis Yes: aerosols, boundary layers, clouds
Extinction & backscatter coefficients Yes (with additional data : AOD or LiDAR Ratio)
Depolarization ratio Yes

Environmental Conditions

+15°C to +30°C without thermal enclosure -20°C to +45°C with thermal enclosure
Humidity 5-75% without thermal enclosure 0-100% with thermal enclosure

General

Transportability Yes
LiDAR size L 650 mm x W 450 mm x H 710 mm
LiDAR weight 35 kg

Options

CE376-G Green 532 nm
CE376-GP Green with depolarization Information on the presence of aspherical particles (ashes, sand, cirruses) in each layer
CE376-N NIR Invisible
CE376-GN Green + NIR Information on the particle size in each layer
CE376-GPN Green with depolarization + NIR Information on the presence of aspherical particles (ashes, sand, cirruses) in each layer

** Molecular detection range

Defined, in the absence of clouds, as the distance up to which the molecular signal (of atmospheric gases) can be measured (with a signal to noise ratio superior to 1).
Aerosols and especially clouds (like cirruses) are detected well above this range (depending on their local concentration).

Engineering Drawings

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SOFTWARE

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