A highly sensitive barometer, which shows an aircraft's altitude above mean sea level by measuring atmospheric pressure.
An instrument that measures elevation by using barometric (air) pressure.
An instrument which displays the altitude above mean sea level (MSL) of an aircraft.
An instrument, usually a converted type of aneroid barometer, graduated to indicate height above a given datum, usually sea level.
an instrument which measures the altitude at which the balloon is flying
A barometer, normalized to standard pressure, temperature and density, used to measure altitude by measuring atmospheric pressure. Altitude is determined by assuming all changes in pressure are due to a change in height relative to sea level. Altimeters are adapted to work over wide ranges of height above sea level and used in GLOBE to measure barometric pressure at elevations above 500 meters. Altimeters are also used by airplane pilots to figure out where they are.
A special barometer used to measure altitude.
A sensitive type of barometer used in aircraft for recording altitude
an instrument that measures the height above ground; used in navigation
a barometer that senses only one thing-the pressure of the air around the aircraft
an active instrument used to measure the (Elevation especially above sea level or above the earth's surface
a very accurate tool for measuring small changes in air pressure which will make big differences in your cars performance
The instrument that indicates flight altitude (in feet), by sensing pressure changes.
An instrument measuring altitude based on changes in barometric pressure.
An instrument which determines the altitude of an object with respect to a fixed level. Two types are pressure altimeters and radio altimeters.
A navigational device used to measure altitude or height above either the ground or mean sea level.
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 7km by 7km) of the sea surface can be determined to within several centimeters. Oceanographers use altimeters to measure highs and lows of the ocean surface, around which geostrophic currents flow. The Topex/Poseidon mission is in an orbit that takes 10 days to finish re-sampling a criss-crossing pattern of ground tracks which are about 250km apart at mid-latitudes. [play orbit movie; shows half a 10-d cycle] The ERS ground tracks are about 160km apart at mid-latitudes, but are re-sampled only every 35 days. [play movie of Topex/Poseidon and ERS along-track sea level measurements] For our present application, we have combined the track data from both satellites to make interpolated maps of the sea surface height. For further information, go to http://topex-www.jpl.nasa.gov
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 [?] corrections are made, the resulting estimate can be used to map the highs and lows of the ocean surface around which geostrophic currents flow. The Topex/Poseidon and Jason missions are in orbits that take 10 days to finish re-sampling a criss-crossing pattern of ground tracks which are about 250km apart at mid-latitudes. [play orbit movie; shows half a 10-d cycle] The ERS and Envisat ground tracks are about 160km apart at mid-latitudes, but are re-sampled only every 35 days. The GFO mission is intermediate, with a 17-d repeat cycle. [play movie of Topex/Poseidon and ERS along-track sea level measurements off WA
An instrument for measuring the balloon's altitude. As this is usually measured according to air pressure and is different from the height above ground, revisions must be made in order to know the actual altitude of the flight in relation to the ground.
Device which measures distance above sea level. Can be used as a navigation tool by comparing the elevation the altimeter says you are at, with the contour lines on your map
Instrument for measuring altitudes or elevations with respect to a reference level, usually mean sea level. The most common type is an aneroid barometer. A radar altimeter determines the height of an aircraft above the terrain by measuring the time required for an electromagnetic pulse to travel from aircraft to the ground and back.
A watch function that uses changes in barometric pressure to provides altitude readings.
A device that determines altitude by responding to changes in barometric pressure.
instrument that measures altitude.
A flight instrument that indicates altitude by sensing pressure changes.
An instrument for determining elevation
An instrument that indicates the altitude (1) of an object with respect to a reference level such as sea level; examples include pressure altimeters and radio altimeters .
Instrument which determines the altitude of an object with respect to a fixed level such as sea level.
an instrument for measuring the altitude with respect to a fixed level
An instrument that determines its distance above a particular surface.
An instrument for indicating the height of the aeroplane from the ground
An instrument which determines the altitude of an object with respect to a fixed level. There are two general types of altimeters: (a) the pressure altimeter, which gives an approximate measure of altitude from a pressure measurement and an assumed standard temperature distribution; and (b) the radio altimeter, which deduces altitude by electronic techniques.
a device for showing height above sea or ground level - usually operates by measuring air pressure. Audible altimeters are also available which beep when you reach a specified altitude.
An instrument that determines height above a reference level, commonly by measuring the change of atmospheric pressure, or by measuring vertical distance directly with a radar-type system.
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.
A panel instrument that tells the pilot the aircraft's altitude above sea level, also referred to as MSL (mean sea level) altitude. The altimeter works by measuring decreases or increases in atmospheric pressure as the aircraft climbs or descends.
An instrument used to measure the height above sea level.
A device indicating altitude.
An instrument used to measure the altitude of an object above a fixed level. Frequently, altimeters measure atmospheric (barometric) pressure to derive altitude. More sophisticated radar altimeters are used in commercial avionics, there are often used during the landing sequence of commercial airliners when a more accurate altitude measurement is required..
an instrument that displays your altitude. can buy watches which have altimeters in them. smallest ,lightest, and cheapest way.
An instrument for measuring in feet the height of the airplane above sea level.
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.
Commonly found on pilot watches, an altimeter provides altitude by responding to changes in barometric pressure.
Instrument for measuring an aircraft's altitude
A device which uses radar technology to determine an airplane's altitude by reflecting an RF signal off the ground.
A device that measures altitude above the surface of a planet or moon. Spacecraft altimeters work by timing the round trip of radio signals bounced off the surface.
An altimeter is an active 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.