Mercury & aneroid are the 2 main types of this instrument used to measure air pressure
562595
What is the instrument used to measure air pressure? | Reference.com  A barometer is the scientific instrument used by meteorologists to measure atmospheric pressure. There are three main types of barometers: mercury, aneroid...
524127
barometer | Britannica.com  Barometer, device used to measure atmospheric pressure. Because ... used to measure altitude. There are two main types of barometers: mercury and aneroid.
562596
Barometer - Wikipedia  A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. ... Barometers and pressure altimeters (the most basic and common type of .... A mercury barometer has a glass tube closed at one end with an open ... An aneroid barometer is an instrument for measuring pressure as a method that...
562597
Air Pressure - Angelfire  The instrument used to measure air pressure is the barometer. There are two main types of barometers - mercury and aneroid barometers - which have very...
562598
Pressure measurement - Wikipedia  Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure and display pressure in an integral unit are ... There are two types of gauge reference pressure: vented gauge (vg) and sealed ..... However, aneroid gauges can be used to measure the pressure of a liquid as...
67956
Psychrometer | Article about psychrometer by The Free Dictionary  Find out information about psychrometer. one of many instruments used for ... at the end of a chain (sling psychrometer) or by a suction fan (aspiration psychrometer). Newer ... Under these conditions, a hair hygrometer is preferred. ... An instrument used to measure the amount of water vapor or relative humidity in the air.
253281
Monitoring Instruments - USGS Earthquake Hazards Program  Apr 6, 2016 ... These instruments monitor the change in crustal strain near active faults and ... consists of a stainless-steel cylinder with an annulus filled with silicone oil. ... A commercial drill rig is used to drill and case 6" to 8" diameter holes and to ... Tiltmeters are highly sensitive instruments used to measure ground tilt...
9255
Measuring Atmospheric Pressure - Windows to the Universe  Jun 11, 2010 ... Measurements from a mercury barometer are usually made in inches of ... Pounds per square inch (abbreviated as p.s.i.) is common in the English system of units, and ... In weather, the bar and millibar (mb) describe pressure.
266443
Put Your Own Spin on Technology - NASA Space Place  The ear thermometer uses special infrared sensor technology developed to detect the birth of stars. Hot objects put out more infrared energy than cool ob- jects.
199478
Fluid Pressure Measurement - HyperPhysics  The fact that open liquids will seek a common level is the principle behind ... The fact that the center manometer has a higher level under these conditions of ... of standard density like mercury or water allows you to express the pressure in units...
314711
PHYS 7.2: Temperature, pressure and the ideal gas laws - Physics ...  At first glance these properties might seem unrelated to temperature but as you will see ..... between temperature and the length of the mercury thread is really correct. ... In 1702, Guillaume Amontons (16631705) invented the gas thermometer. ..... A famous demonstration of air pressure was set up in the 17th century by a...
524128
Measuring Atmospheric Pressure - Windows to the Universe  Jun 11, 2010 ... If atmospheric pressure lessens, downward force on the mercury lessens and ... This type of instrument can be used in a lab or a weather station, but is not ... An aneroid barometer can be used in place of a mercury barometer.
382367
Health and home hazards - ACS Publications  The doctors suspected heavy metal poisoning, but no likely exposure source could be ... measurement of blood pressure and temperature, it is a dangerous toxin. ... Thus, to measure blood pressure, the cuff is inflated (and the mercury in the ... flow, usually at 180200 mm Hg. As the cuff pressure is slowly released, the user...
139980
Convert pascal [Pa] <> millimeter mercury (0C) [mmHg ...  pascal to millimeter mercury (0C) (PammHg measurement units conversion. ... Additional recommendations include diet high in carbohydrates, and resting well, ... Millimeters of mercury are used as units for blood pressure measurements, even in ... This method is common, especially for making gemstones, because it is...
76224
Wind Measurement, Wind Speed, Wind Direction, Wind Speed And ...  Wind Measurement at WeatherShack.com, Your Source for Wind Speed, Wind ... Instrument: Anemometer. Wind is the natural motion of the air roughly parallel to the Earth's surface. ... The most common, included with complete home weather stations, is the ... Similarly, wind vanes are used to indicate wind direction.
297149
Hygrometer - Wikipedia  A hygrometer /harmtr/ is an instrument used for measuring the moisture content in the atmosphere. Humidity measurement instruments usually rely on measurements of some ... These devices use a human or animal hair under tension. The hair is hygroscopic (tending toward retaining moisture); its length changes...
105855
Blood pressure cuff - The Free Dictionary  An instrument for measuring blood pressure in the arteries, especially one consisting of a ... an instrument, often attached to an inflatable cuff and used with a...
509674
Hydrometer - Wikipedia  A hydrometer or areometer is an instrument that measures the specific gravity (relative density) of liquidsthe ... In low-density liquids such as kerosene, gasoline, and alcohol, the hydrometer sinks deeper, and .... Sometimes spelled acidimeter, an acidometer is a hydrometer used to measure the specific gravity of an acid.
199479
Manometers | PCE Instruments  The Measuring devices we provide can measure both over and under-pressure. At PCE we can offer you Absolute Pressure Manometers, Differential Pressure...
116978
Temperature and Thermometers - The Physics Classroom  For certain, we are comfortable with the first two definitions - the degree or measure of ... science class is the type that consists of a liquid encased in a narrow glass column. Older thermometers of this type used liquid mercury. ... The Celsius scale is the most widely accepted temperature scale used throughout the world.
102784
INTRODUCTION TO METEOROLOGICAL INSTRUMENTATION  In addition to the three types of pressure measurements, there are different types of fluid .... A mercury barometer has a glass tube of at least 33 inches (about 84 cm) in height, closed at ... This was the birth of the first actual and reliable weather instrument. .... Each 25 feet above sea level is equal to 0.03 inches on the scale.