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pressure altimeter
- Sinônimos
- barometric altimeter
- Definição1
- An aneroid barometer calibrated to convert atmospheric pressure into altitude.
- Fonte1
- ANTAS, Luiz Mendes. Glossário de termos técnicos. São Paulo: Traço, 1979. 756 p. (Coleção Aeroespacial; t. 1.)
- Definição2
- Aneroid barometer adapted for determining height differences.
- Fonte2
- WORLD METEOROLOGICAL ORGANIZATION. International meteorological vocabulary. 2nd ed. Geneva, 1992. (WMO, n.182). Disponível em: < https://library.wmo.int/index.php?lvl=notice_display&id=220#.XeauGOhKiUk >. Acesso em: 18 fev. 2020.
- Fonte3
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Required navigation performance authorization required (RNP AR) procedure design manual. Montreal, 2009. (Doc.9905)
- Nota adicional1
- Altimeters use standard atmosphere pressure–height relations in converting pressure into altitude. Therefore, the altimeter shows indicated altitude, which may, and frequently does, differ from the actual altitude. An altimeter may be set to measure altitude from an arbitrarily chosen level. It is common practice to use mean sea level; the level of the constant-pressure surface of 29.92 in. of mercury is also used; and, less frequently, the constant-pressure surface of the pressure at airport height.
- Contexto
- Final approach vertical guidance and DA/H are based on pressure altimeter.
- Português
- altímetro de pressão