Sensors for runway freeze point detection independent of de icing material types.

1. Runway
Ice warning systems

2. Benefit – Ice warning systems
» permanent control of the runway for
24h a day and 7 days a week is
possible.
» flight security can be optimized
» permanent acquisition of data will
optimize the winter maintenance and
in special the use of deicing fluids
» help to minimize control trips and
organize them more effective

3. Benefit – Ice warning systems
» Certified acquisition of data
» Automatic backup and verification of
the runway status (data)
» Use in case of refund
examination
» Use of the runway status for airlines
possible

4. System structure

5. Passive & active RWY sensors

6. Passive Runway sensor
IRS31-UMB
» Measurement principle:
Passive salt concentrations- and freeze
point temperature measurement by
measuring the conductivity
dependent on water film height

7. Passive Runway sensor
IRS31-UMB
Measurement of…
» RWY surface temperature
» RWY depth temperature in 5cm and 30cm
» Water film height up to 4mm
» RWY condition (dry, damp, wet, critical
wetness, critical (snow/ice))

8. Passive Runway sensor
IMPORTANT:
No measurement of freezing point
temperature in runway applications with
IRS31-UMB possible because of use of
deicing fluid

9. Active runway sensor
ARS31-UMB
» Measurement principle:
Measurement of salt concentration and
freeze point temperature by active
cooling and heating of the sensor
surface.

10. Active runway sensor
Measurement of…
» Freezing point temperature
(independent of used deicing fluid)
» Deicing fluid concentration

11. System structure
Only with combination of passive and active
RWY sensor determination of following
parameters possible:
» RWY surface temperature
» RWY depth temperature (5+30cm)
» Water film height up to 4mm
» RWY condition (dry, damp, wet, critical wetness,
critical (snow/ice))
» Freezing point temperature
» Deicing fluid concentration

12. All-in-one weather station

13. All-in-one weather station
WS600-UMB
Measurement of…
» Air temperature
» Rel. Humidity
» Dew point
» Air pressure
» Wind speed and wind direction
» Precipitation intensity
» Precipitation type

14. References
» Airport Düsseldorf, Germany
» Airport Paderborn, Germany
» Airport Turin, Italy
» Military Airport Jever, Germany
» Military Airport Spangdahlem,
Germany

15. G. Lufft Mess- und Regeltechnik GmbH
Gutenbergstr. 20
70736 Fellbach
Web: www.lufft.com || E-Mail: info@lufft.de