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barometer    音标拼音: [bɚ'ɑmɪtɚ]
n. 气压计

气压计

barometer
n 1: an instrument that measures atmospheric pressure

Barometer \Ba*rom"e*ter\, n. [Gr. ba`ros weight -meter: cf. F.
barom[`e]tre.]
An instrument for determining the weight or pressure of the
atmosphere, and hence for judging of the probable changes of
weather, or for ascertaining the height of any ascent.
[1913 Webster]

Note: The barometer was invented by Torricelli at Florence
about 1643. It is made in its simplest form by filling
a graduated glass tube about 34 inches long with
mercury and inverting it in a cup containing mercury.
The column of mercury in the tube descends until
balanced by the weight of the atmosphere, and its rise
or fall under varying conditions is a measure of the
change in the atmospheric pressure. At the sea level
its ordinary height is about 30 inches (760
millimeters). See {Sympiesometer}. --Nichol.
[1913 Webster]

{Aneroid barometer}. See {Aneroid barometer}, under
{Aneroid}.

{Marine barometer}, a barometer with tube contracted at
bottom to prevent rapid oscillations of the mercury, and
suspended in gimbals from an arm or support on shipboard.


{Mountain barometer}, a portable mercurial barometer with
tripod support, and long scale, for measuring heights.

{Siphon barometer}, a barometer having a tube bent like a
hook with the longer leg closed at the top. The height of
the mercury in the longer leg shows the pressure of the
atmosphere.

{Wheel barometer}, a barometer with recurved tube, and a
float, from which a cord passes over a pulley and moves an
index.
[1913 Webster] Barometric

48 Moby Thesaurus words for "barometer":
aerological instrument, aneroid barometer, aneroidograph,
barograph, barometrograph, canon, check, criterion, degree, feeler,
gauge, glass, graduated scale, hurricane-hunter aircraft,
hygrometer, measure, model, norm, parameter, pattern,
pilot balloon, probe, quantity, radiosonde, random sample, reading,
readout, recording barometer, rule, sample, scale, sound, sounder,
standard, straw vote, test, touchstone, trial balloon, type,
vacuometer, value, weather balloon, weather instrument,
weather satellite, weather vane, weathercock, weatherglass,
yardstick


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  • Amazon. com: Barometers - Barometers Thermometers Weather . . .
    Discover Barometers on Amazon com at a great price Our Weather Instruments category offers a great selection of Barometers and more Free Shipping on Prime eligible orders
  • Barometer | Definition, Types, Units, Facts | Britannica
    A barometer is a device used to measure atmospheric pressure Because atmospheric pressure changes with distance above or below sea level, a barometer can also be used to measure altitude There are two main types of barometers: mercury and aneroid
  • How Is Barometric Pressure Measured and Why? - HowStuffWorks
    What Is a Barometer? A barometer is a scientific instrument designed to measure barometric pressure Barometers as we know them date back to 1643 when the Italian inventor Evangelista Torricelli measured air pressure using a glass tube filled with mercury and open on its downward-pointing end
  • What Is A Barometer, How It Works, Where To Place It Different Types
    A barometer is defined as a meteorological instrument used to measure air pressure in the atmosphere It forms a critical part of any weather station and is primarily used with other sensors to measure current and determine future weather conditions
  • What is a Barometer? How It Measures Pressure
    Learn what a barometer is, how it measures atmospheric pressure, its history, types (mercury, aneroid), and common uses like altitude measurement
  • Barometers | Fisher Scientific
    Barometers are instruments that measure the pressure of air in a specific environment; barometer measurements are used to forecast weather and measure altitude Atmospheric pressure also depends on the planet’s mass, its surface radius, the gas concentrations and composition, and the gases’ vertical distribution in the atmosphere
  • Barometer Definition and Function (Science) - ThoughtCo
    This is the definition of barometer, a description of different types of barometers, and an explanation of how the instruments work
  • Barometers – The Weather Store
    A barometer is a popular weather instrument that measures atmospheric air pressure Generally, when the pressure is high or rising, you can expect clear cool weather And when the pressure is low or falling you can expect warmer more unsettled weather
  • What is Barometer: Understanding the Basics of Atmospheric Pressure
    A barometer is an essential meteorological instrument used to measure atmospheric pressure This article aims to provide a comprehensive understanding of barometers, their historical evolution, types, working principles, and various applications
  • Barometers | Accurate, Essential for Geophysics Weather Forecasting
    Barometers are devices that measure atmospheric pressure, a fundamental parameter in meteorology and geophysics The history of barometers dates back to the 17th century, with the invention of the mercury barometer by Evangelista Torricelli, a student of Galileo





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