Visibility sensor TR30LED

The TR30LED transmissometer is a sensor used for visibility measurement for aeronautical applications. It measures the Transmissive Ability of the Atmosphere (TAA) and calculates Meteorological Optical Range (MOR). Runway Visual Range (RVR) is processed using transmissivity ability of atmosphere (TAA), luminance (LU320) and runway lighting intensity measurement. The TR30LED transmissometer is avisibility sensor designed for aeronauticalapplications. It measures thetransmission ability of the atmosphere(TAA) and calculates the meteorologicaloptical range (MOR).When associatedwith both a luminancemeterand a runwaylight intensity transmitter, the TR30LEDallows the calculation of both the runwayvisual range (RVR) and the aeronauticalvisibility (AV), as defined by the ICAOstandards. The TAA and MOR values aredetermined by the measurement of thedimming of a LED based white source (modulated at 30 Hz) through theatmospheric layer between thetransmitter and the receiver. The design choice and the quality ofthe assembly allow operating on the fullrange with a single base (30 m)whatever the type of the airport (CAT Ito CAT III c), without interruptions andwith minimal maintenance. TheTR30LED integrates an automaticcalibration in order to compensate thedrift caused by the dust.A remotedigital display shows the measurementdata.