TERMIUM Plus®

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pressure altimeter [2 records]

Record 1 2014-10-21

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
  • Aircraft Piloting and Navigation
DEF

... altimeter which uses the barometric principle to measure vertical distance with respect to a specified pressure datum; the datum may be varied by changing the pressure reference. [Definition standardized by the British Standards Institution and by NATO.]

CONT

We all fly with instruments. The altimeter measures height above a reference. ... The aneroid altimeter uses a small sealed capsule containing air. As the instrument goes up, the air pressure in the capsule increases and by the design of the capsule, it is allowed to expand in a certain direction. This expansion is coupled by mechanical linkages to a dial display. The dial can be adjusted by a knob to read say height above sea level (QNH) or height above the field (QFE). This altimeter is mechanical.

OBS

aneroid: Describing a device or system that does not contain or use liquid.

OBS

aneroid altimeter: term mostly found in aeronautics literature.

OBS

pneumatic altimeter (B-727).

OBS

barometric altimeter; pressure altimeter: terms standardized by the British Standards Institution and by NATO.

OBS

pressure altimeter; aneroid altimeter: terms officially approved by the International Civil Aviation Organization (ICAO).

Key term(s)
  • barometric altimetre
  • pressure altimetre
  • aneroid altimetre
  • pneumatic altimetre

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
DEF

[...] altimètre qui utilise le principe du baromètre pour mesurer la distance verticale le séparant d'un niveau de pression de référence donné; cette référence peut être modifiée en affichant une nouvelle pression. [Définition normalisée par l'OTAN.]

CONT

L'équipement normal de la plupart des aéronefs comprend un altimètre barométrique; il s'agit en fait d'une variante du baromètre anéroïde qui utilise la pression atmosphérique pour indiquer la hauteur à laquelle se trouve un aéronef par rapport au niveau moyen de la mer.

OBS

altimètre barométrique; altimètre pression : termes normalisés par l'OTAN.

OBS

altimètre barométrique; altimètre anéroïde : termes uniformisés par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes et par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Instrumentos y equipo de vuelo (Industria aeronáutica)
  • Pilotaje y navegación aérea
OBS

altímetro aneroide; barómetro altimétrico; altímetro barométrico: términos aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).

Save record 1

Record 2 1992-12-31

English

Subject field(s)
  • Scientific Instruments
  • Meteorology
DEF

Aneroid barometer adapted for determining height differences.

CONT

There are several types of altimeters: 1) the pressure altimeter, which measures barometric pressure and converts it to altitude above sea level when referenced to the existing measured sea level barometric pressure, or to pressure altitude when referenced to a standard pressure ...

French

Domaine(s)
  • Instruments scientifiques
  • Météorologie
DEF

Baromètre anéroïde adapté pour déterminer des différences d'altitude.

Spanish

Campo(s) temático(s)
  • Instrumentos científicos
  • Meteorología
DEF

Barómetro aneroide adaptado para determinar diferencias de altitud.

Save record 2

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