European Facility For Airborne Research

European Facility For Airborne Research July 7, 2020, 02:38

Instrument: FAAM Flourescence Water Vapour Sensor

Name FAAM Flourescence Water Vapour Sensor
Acronym FWVS
Manufacturer Met Office
Operated by FAAM
Operated onboard

Instrument type

Name Non dew/frost point hygrometer
Acronym Other hygrometer

Principle of operation

Measured parameter Water Vapour, Relative Humidity
Operating principle

The MOZAIC-Humidity Device (MHD) is a special airborne humidity sensing device (AD-FS2), developed by Aerodata (Braunschweig, Germany) and based on the humidity and temperature transmitter HMP230 of Vaisala (Helsinkin, Finnland). The sensing element itself is a combination of a capacitive relative humidity sensor (Humicap-H, Vaisala) and a Pt100 temperature sensor which has been installed in a Rosemount housing mounted on the outside skin of the aircraft in the vicinity of the nose cone.

Measurement(s) Thermodynamics

Dimension and weight

External dimension
Weight 0.0


Operating mode In situ






Operational restriction

Currently (June 05) needs operator on aircraft.

Operational requirements

Certification approvals

Approved by CAA for use on BAe 146-301.

Additional information

Water Vapour by UV Fluorescence

Access, host and processing


Available from FAAM. (Met Office operated).

Could also fit on any aircraft having the following characteristics

General description

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