European Facility For Airborne Research

European Facility For Airborne Research May 17, 2022, 07:27

Instrument: TUBs Meteolabor TP3S hygrometer

Name TUBs Meteolabor TP3S hygrometer
Acronym Meteolabor-TP3S-TUBs
Manufacturer Meteolabor AG
Manufacturer website
Operated by TUBs
Operated onboard

Instrument type

Name Dew/Frost-point hygrometer
Acronym Dew/Frost-point hygrometer

Principle of operation

Measured parameter Dew Point
Operating principle

Thermoelectric Chilled Mirror Hygrometer
Operating principle information should be extended to explain servo-control of mirror temperature and detection of condensation deposit.
Note possible ambiguity between dew and frost-point temperatures for low mirror temperatures.
Operating principle is extended to include cryogenic cooling in addition to thermoelectric.
manual hygrometers

Measurement(s) Thermodynamics

Dimension and weight

External dimension 45 x 42 x 35 mm
Weight 0.17


Operating mode In situ






Operational restriction

Operational requirements

Certification approvals

Additional information

* Dew point hygrometer and dew point sensor with thermocouple thermometer
* Additional absolute pressure measurement with Setra B270 (SN: 889082 / 450-1100 hPa)
Serial Number: 055

Access, host and processing


Could also fit on any aircraft having the following characteristics

General description

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