The SI unit is the pascal (air pressure is about 100,000 pascal). Other units include the Bar ("standard air pressure", which approx. = that 100 kPa ), and the torr, which is approximately equal to millimetres Hg but used for measuring vacua. Air pressure is about 760 torr.
Pascal (Pa) is the S.I. units of pressure. Another common unit is the atmosphere (atm). Other units can be used (depending on where you live- US or UK) such as the bar and the psi (pounds per square inch).
Conversions between each unit are readily available online.
There are many units for measuring the pressure but the most used units are :
I- 1 PSI: Pounds per sq. In= 27.73 Inches of water@68F=2.311 feet of water@68F=2.036 Inches of Mercury@0C=0.07031 kilograms per sq. cm.=0.0680 atomospheres=51.71 Millimeters of mercury@0c=0.7043 Meters of water= 0.06895 Bar=6.895 kilo Pascals
II- 1 Bar= 14.50 Pounds per sq. in=1.020 kilograms per sq. cm.=100.0 Kilo Pascals
The two most common units to measure atmospheric (barometric) pressure, is either the height of a column of mercury a complete vacuum could suck up, which is on average at sea level 760 mm or 29.92", or in millibars (mBar), which is a metric unit equal to 1/100 Pascals. At sea level, the average pressure is 1013.2 mBars.
For the air pressure of, say an inflated tire, the two common units are pounds per square inch (psi) and kiloPascals
(kPa).
These are usually "gauge pressures", meaning that the atmospheric pressure has already been subtracted. For example, a car tire may be rated for 35 psig.
The absolute pressure of the air in the tire would probably be closer to 50 psi, but atmospheric pressure, about 14.7 psi, is subtracted. That is why a tire gauge shows zero pressure when not connected, even though atmospheric pressure is always being exerted on it, as it is on us all. Of course, to measure gauge pressure of a partial vacuum (less than atmospheric pressure)
, the gauge would have to be able to give negative readings.
There are dozens of ways of expressing air pressure, usually grouped around the length of a column of mercury, or some other liquid, that could be pulled by a vacuum, or simply in units of Force per unit area. However, sometimes even these units aren't obvious. For example, a "Torr", usually seen on vacuum gauges, is actually just a mm of mercury, mentioned at the beginning. A really good vacuum might be measured in "microns" (micrometers) of mercury.
The SI unit is the pascal (air pressure is about 100,000 pascal). Other units include the bar (air pressure is about 1 bar), the standard atmosphere, and the torr, which is approximately equal to millimeters Hg. Air pressure is about 760 torr.
There are 3 units of pressure: Kilopascal (kPa), atmosphere (atm) and pound per square inch (psi). Kilopascal at standard pressure is 101.3 kPa and standard pressure for atmosphere is 1 atm.
Air pressure can be measured in millibars and in pounds per square inch.
mercury barometer and a aneroid barometer
Volume, Tempature, Pressure
Pressure is often measure in units of force per area. In the standard system of units, the SI, that would be Newton / meter2 - this unit is also called Pascal. Other commonly used units are bar (equal 100,000 Pascal), and atmosphere (the atmospheric pressure under standard conditions - close to one bar).
Probably a mercury barometer and a aneroid barometer. -adrian
yes,manometer is an instrument . It is used to measure pressure of liquid.
kcal/day
Units of measure are used to measure anything: length or volume, mass or speed, pressure or force etc.
The "second" ... the basic unit of time duration.
Different units are used to measure different things, depending on whether you want to measure length, area, volume, time, electrical current, pressure, etc.
Units of measure are used to measure anything: length or volume, mass or speed, pressure or force etc.
Pressure is measured by a pressure gauge, pressure transducer or other similar device. Once measured, the pressure can be expressed in any one of a number of different units. The "kilopascal" is one unit that's commonly used.
Units of Pascal, Torr, or Bar are commonly used to measure pressure. These units represent the force exerted by a fluid or gas over a given area. Pascal is the SI unit, Torr is commonly used in vacuum measurements, and Bar is used in meteorology and industrial applications.
AnswerA thermometer is used to measure temperature.There are different units used to express temperature these units include kelvin,celsius and fahrenheit.These units can be convert from one to the other by simple calculation.However thermometers are found with different units of temperature, most thermometers measure in celsius and Fahrenheit.
The answer will depend on the units which were used to measure it as 10x10x5.The answer will depend on the units which were used to measure it as 10x10x5.The answer will depend on the units which were used to measure it as 10x10x5.The answer will depend on the units which were used to measure it as 10x10x5.
Blood pressure is usually expressed in terms of millimeters of mercury (mmHg).
Volume, Tempature, Pressure
Square units are used to measure the area of something.
The SI unit for pressure is a Pascal but in this case the standard unit is the standard atmosphere (= 101325 Pa).