European Facility For Airborne Research

European Facility For Airborne Research Dec. 5, 2025, 07:11

Instrument: INTA 137 Vigilant Aircraft Hygrometer

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  3. Instrument: INTA 137 Vigilant Aircraft Hygrometer
Name INTA 137 Vigilant Aircraft Hygrometer
Acronym 137 Vigilant Aircraft Hygrometer
Manufacturer Edgetech
Manufacturer website http://www.edgetechinstruments.com/
Operated by INTA
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.
or
manual hygrometers
Measurement(s) Thermodynamics

Dimension and weight

External dimension
Weight 1.0

Performance

Operating mode In situ
Range

Resolution

Sensitivity

Accuracy

Bandwidth

Modifications

Operational restriction

Operating Temperature:
Control Unit: 0° to +50°C
Operational requirements

-Range::_<BR> -Resolution ::_<BR> -Sensitivity::_<...
Certification approvals

Additional information

Access, host and processing

Access

Could also fit on any aircraft having the following characteristics

General description

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