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altimeter 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/alˈtimitər/,
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altimeters, plural;
  1. An instrument for determining altitude attained, esp. a barometric or radar device used in an aircraft

  1. an instrument that measures the height above ground; used in navigation
  2. An altimeter is an instrument used to measure the altitude of an object above a fixed level. The measurement of altitude is called altimetry, which is related to the term bathymetry, the measurement of depth underwater.
  3. An instrument for determining elevation, especially an aneroid barometer used in aircraft that senses pressure changes accompanying changes in altitude. The Garmin® eTrex® Vista and Summit models contain a basic GPS with a built-in barometric altimeter.
  4. A device indicating altitude.
  5. All GPSes can determine your elevation quite accurately from the same satellite signals that they use to determine your horizontal position. Some deluxe units also have a barometric sensor to use air pressure to provide an even more accurate reading.
  6. Function that provides altitude by responding to changes in barometric pressure, commonly found in pilot watches. Inside a pressurized airplane cabin, the altimeter registers as if on land.
  7. An instrument used to determine the altitude of an object with respect to a fixed level. The type normally used by meteorologists measures the altitude with respect to sea level pressure.
  8. An adjustable aneroid-barometric cockpit instrument used to measure an aircraft's altitude.
  9. a barometric device for determining elevations above sea-level.
  10. A device that measures the distance above or below mean sea level. Watch altimeters almost invariably use barometers to estimate altitude.
  11. An aneroid barometer calibrated to read in altitude or elevation.
  12. an instrument used to determine altitudes and elevations, or the height of a tree.
  13. A special instrument pilots can use to determine the height of an airplane. They are like an accurate aneroid barometer and can be adjusted to weather changes. The change in air pressure is about 1/10 inch of mercury for every 100 feet higher or lower of the plane.
  14. An instrument that determines its distance above a particular surface.
  15. A highly sensitive barometer that shows an aircraft’s altitude above mean sea level by measuring atmospheric pressure
  16. A satellite altimeter measures the distance from the satellite to the sea surface directly below. Once the position of the satellite is known, the height (averaged over about 2km by 7km) of the sea surface can be determined to within several centimeters. After tidal and isostatic [? ...
  17. rotating bezel that measures the altitude.
  18. An altimeter measures altitude, or height above sea level. Recording ascent and descent, an altimeter watch is an important piece of equipment for climbers, walkers, mountaineers and, of course, aviators.
  19. An instrument which determines altitude, or physical elevation. Usually pressure altitude can also be shown. A good reconditioned aircraft quality altimeter can be very accurate, but more expensive than a comparable quality barometer.
  20. Essentially a barometer which displays the height of the aircraft. It usually looks like a three handed clock. The big hand at the front indicates hundreds of feet, the medium sized hand indicates thousands, and the little hand at the back shows tens of thousands of feet. Top
  21. A pressure sensing device (barometer) calibrated in feet which is carried in an aircraft to tell the pilot how high the aircraft is off the ground.
  22. Takes measurements of height (altitude) every 2 minutes, shows a graph.
  23. Instrument used to measure altitude over the ground and/or above sea level. Often incorporated into modern flight instruments.
  24. Devise for measuring height (eg of an aircraft, relative to mean sea level).
  25. An instrument, most usually an aneroid barometer, calibrated in meters and/or feet, to indicate an aircraft's height.