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2. Barometer - Wikipedia

   en.wikipedia.org/wiki/Barometer

   A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Pressure tendency can forecast short term changes in the weather.

3. List of weather instruments - Wikipedia

   en.wikipedia.org/wiki/List_of_weather_instruments

   Thermometer for measuring air and sea surface temperature; Barometer for measuring atmospheric pressure; Hygrometer for measuring humidity; Anemometer for measuring wind speed; Pyranometer for measuring solar radiation; Rain gauge for measuring liquid precipitation over a set period of time; Wind sock for measuring general wind speed and wind ...

4. List of measuring instruments - Wikipedia

   en.wikipedia.org/wiki/List_of_measuring_instruments

   Barometer used to measure the atmospheric pressure. Manometer (see Pressure measurement and Pressure sensor) Pitot tube (measures airspeed) Tire-pressure gauge in industry and mobility; For the ranges of pressure-values see: Orders of magnitude (pressure)

5. Pressure measurement - Wikipedia

   en.wikipedia.org/wiki/Pressure_measurement

   A pressure gauge pointer moving over its full range Pressure transmitter Digital air pressure sensor Miniature digital barometric pressure sensor Front and back of a silicon pressure sensor chip. Note the etched depression in the front; the sensitive area is extremely thin.

6. Atmospheric pressure - Wikipedia

   en.wikipedia.org/wiki/Atmospheric_pressure

   Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth.The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa), which is equivalent to 1,013.25 millibars, [1] 760 mm Hg, 29.9212 inches Hg, or 14.696 psi. [2]

7. Mercury pressure gauge - Wikipedia

   en.wikipedia.org/wiki/Mercury_pressure_gauge

   The parent of all mercury pressure gauges is the mercury barometer invented by Evangelista Torricelli in 1643. [15] An early engineering application of the mercury pressure gauge was to measure pressure in steam boilers during the age of steam. The first use on steam engines was by James Watt while developing the Watt steam engine between 1763 ...