*Surface Layer Scintillometer SLS20 (ES)*
The Scintec SLS20 (ES) Scintillometer measures turbulence, heat flux and momentum flux by purely optical means. In combination with other meteorological sensors the system can determine latent heat flux or evaporation.

Each SLS Series Scintillometer consists of a laser transmitter pointing at a receiver. Temperature fluctuations in the air cause variations of the light intensity captured at the receiver. The scintillometer evaluates such variations to yield turbulence information.

The line averaging over the optical path results in spatially representative data and outstanding temporal resolution – a critical edge over data collected from conventional point sensors. The scintillometer provides high sensitivity and accuracy – without mechanical flow distortion or any moving part.

The proprietary displaced-beam technique of the SLS Series Scintillometers opens up access to mechanical turbulence quantities (momentum flux, kinetic-energy dissipation rate) without need to feed in any external wind data.

*FEATURES-1*
heat flux, momentum flux by purely optical means
suitable for stable and unstable conditions
high temporal resolution
crosswind option available

*FEATURES-2*
easy installation and operation
beam-displacement calibration
spatially averaging technique
no flow distortion
window heating


*SPECIFICATIONS*
Specifications

*SPECIFICATIONS-TABLE*
Data output (includes but is not limited to)
# (Description) # 
# Structure parameter of refractive index fluctuations (Cn2) #
# Inner scale of refractive index fluctuations (l0) #
# Structure parameter of temperature fluctuations (CT2) #
# Dissipation rate of turbulent kinetic energy #
# Sensible heat flux #
# Momentum flux #
# Obukhov length #
# Path-average wind speed perpendicular to he beam axis (with crosswind extension) #
# Mean, standard deviation, minimum and maximum of intensity #
# Correlation coefficient of intensity #
# Data quality code #   

*SPECIFICATIONS-TABLE*
General Specifications
# (Parameter) # (Specification) #
# Optical wavelength # 670 nm +- 10 nm // ((visible/red)) #
# Mean output power # 140 µW // ((laser safety class 1)) #
# Beam divergence # 3.5 x 3.5 mrad # 
# Path length # 50 - 250 m // ((others optional)) #
# Integration time # 1 s to 60 min # 
# Supply voltage and current # 12 V, 15 W // ((for transmitter, receiver and SPU)) #
# Data output # Ethernet, RS-232 // ((6 GB storage)) #
# Operating temperature # -20°C to +50°C (-5°F to +120°F) #
# Dimensions and weight: Transmitter # 52 x 11 x 11 cm / 3.0 kg #
# Dimensions and weight: Receiver # 60 x 11 x 11 cm / 2.9 kg #
# Dimensions and weight: SPU # 33 x 23 x 18 cm / 8.0 kg #

The Surface Layer Scintillometer for stable platforms or heavy tripods on solid ground.
Selected Products
No products selected

(c) Scintec AG 2021