Vaisala AviMet Runway Visual Range System (RVR)
The Vaisala AviMet® Runway Visual Range System (RVR)
provides fully automated runway visual range assessment and reporting for
airports. It comprises a visibility sensor, a background luminance meter and a
computer that calculates the RVR values. The visibility sensor is offered in
two forms: transmissometer or forward scatter meter. The RVR computer collects
the visibility data from the visibility sensors, the background luminance data
from the background luminance meters, and runway light setting data from a
dedicated interface unit. It calculates the RVR values on the basis of this
data, and distributes the RVR messages and alarms to output devices such as
computer terminals, chart recorders and digital displays.
The AviMet RVR System conforms to all ICAO and WMO accuracy
requirements. Vaisala transmissometers, visibility sensors or weather sensors
can be used in the RVR assessment to measure visibility.
The Vaisala AviMet RVR System is part of the Vaisala AviMet
total aviation weather management solution that bridges the gap between weather
and aviation operations. Vaisala AviMet comprises of the technology platform,
services, and a growing set of end-user applications ranging from ATC to
de-icing applications.