File:3-Pointer_Altimeter.svg · Wikimedia Commons · See Wikimedia Commons
altimeter
Sign in to saveAlso known as altitude meter
right|thumb|Diagram showing the face of the three-pointer sensitive aircraft altimeter displaying an altitude of . Reference pressure of about 29.92 [[inHg (1013 hPa) is showing in the Kollsman window.]] An altimeter, or altitude meter, is an instrument used to measure the altitude of an object relative to a fixed level. The measurement of altitude is called altimetry, which is related to the term bathymetry, the measurement of depth under water.
An altimeter is an instrument that measures how high an object is above a fixed reference level, such as sea level or ground level. This measurement is important for aircraft and other applications where knowing altitude is critical for safe operation and navigation.
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9 sectionsContents
- Types
- Pressure altimeter
- Sonic altimeter
- Radar altimeter
- Laser altimeter
- Satellite navigation
- See also
- References
- External links
right|thumb|Diagram showing the face of the three-pointer sensitive aircraft altimeter displaying an altitude of . Reference pressure of about 29.92 [[inHg (1013 hPa) is showing in the Kollsman window.]] An altimeter, or altitude meter, is an instrument used to measure the altitude of an object relative to a fixed level. The measurement of altitude is called altimetry, which is related to the term bathymetry, the measurement of depth under water.
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