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Instrument for measuring pressure of fluids?
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The instrument, most commonly used in science, is a barometer . Related Information: The word, Barometer, is derived from baro , meaning weight orpressure, and meter , m…eaning measuring device. Barometers can be either analog or digital. The traditional analogbarometer is known as an aneroid barometer. These are theround chrome or brass type that you would normally see on thebridge of a ship, many times accompanied by clock, temperature,and/or humidity gauge. For an accurate and reliable aneroid barometer, you should expectto pay $249.00 or more. For aneroid barometers, accuracy andreliability will wane incrementally below that price. The cost ofscientific instruments, including barometers, are directly tied toaccuracy and reliability. In some cases, however, as you go up inprice, accuracy will remain stable but quality of materials andcraftsmanship will drive the price upwards (i.e. use of thick solidbrass or chrome). Digital barometers emulate the results achieved from an aneroidbarometer (sometimes called a "nautical barometer). Their accuracyvaries wildly and is not necessarily tied to price . Forexample, the barometers, in even the most reasonably priced (under$100.00) La Crosse Weather Stations, are exemplary performers.Anecdotal observations over many years show that the La Crossevariance from NIST traceable, accurate weather stations has beenminimal (Â±.01). Other inexpensive manufacturer's products havenowhere near this steady and predictable tolerance. And many are asmuch as .06-.10 or 2-3mb off after initial calibration. All barometers are not the same. Most have elevationlimitations. With the Weems & Plath barometers, specificelevations are designated by each individual product. So, be sureto probe for this information before you buy. Some barometers canbe upgraded for high elevation use. But this is relativelyexpensive, and generally for those barometers to be used in terrainof 5,000ft. Digital barometers can have the same limitations. Again, be carefulwhen you purchase. We are not aware of any low cost digitalthat will function correctly over 5,000-6,000 ft elevation. Forhigh altitudes, or if you're a stickler for accuracy, you mustconsider the Davis, RainWise, WeatherHawk, or Columbia WeatherSystems. Do not rely on any barometer above 5,000-6,000 ft formission critical or safety applications, unless you are absolutelycertain of its well defined and guaranteed specifications. Rememberthat as you begin to challenge the stated limitations of anyscientific device, your inaccuracies will almost certainly increaseas you approach the stated threshold. For example, a stated 6,000ft elevation limit may function perfectly well up to 4,000 ft.Then, possibly a gradual fall-off in accuracy between4,000-5,000ft. But then a rapid and possibly logarithmic increasein error percentage over 5,000ft. This is just an example and notmeant to be a basis for calculating decreasing accuracy in anyscientific instrument. The original analog barometer was the water ball. This instrumentfeatured a glass reservoir at its bottom that fed into a narrowingtube that protruded upwards. As atmospheric pressure increased, thewater was driven upwards into the tube, to indicate fair orimproving weather conditions. Conversely, as the air pressuredropped, the water level in the tube fell, to indicate a change tomore inclement weather. As the water level fell even lower in thetube, it became a more urgent indicator of impending foul weather.
There are many instruments capable of measuring liquid volume: In laboratories, typical volume measuring devices include graduated cylinders and beakers, and measuring/vol…umetric flasks. For home use, the equivalents are measuring cups and spoons.
Not sure about pressure but wind speed is measured by an ANENOMETER. You may be able to meaure its pressure by some form of dynamometer (basically a spring-ba…lance) attached to a target-plate of known area. There may also be calculations using speed and barometric pressure.
manometer manometer A pressure gauge ... unless you call it a tire gauge. manometer
A hydrometer measures the density of a fluid. Pycnometer to measure density Density cannot be measured directly. You must find the mass of the liquid and its volume. You wou…ld use a graduated cylinder to measure the volume of a liquid, and you would use a scale or balance to measure its mass. To measure the mass, first measure the mass of an empty beaker or cylinder. Then place the entire volume of the liquid into the beaker. Then measure the mass of the beaker or cylinder with the liquid. Subtract the first mass measurement from the second mass measurement. The result is the mass of the liquid. Then, use the density equation, density = mass/volume, to calculate the density of the liquid. A test tube
The instuments that measure pressure are hydrostatic and aneroid. A barometer, manometer, and tire gauge all measure pressure. Bordon gauges are industrial instruments that me…asure pressure. Guage, Barometer manometer Commonly called a tire pressure gauge. Answer A measurement of pressure is PSI (pounds per square inch). There are gages that measure PSI. The answer depends on what you are asking about: For measuring blood pressure you could use a manometer. For measuring tire pressure you could use a tire pressure guage. For measuring air pressure you could use a barometer. For measuring electrical pressure (also known as potential difference) you could use a voltmeter. Note There are lots of other things which may need to have their pressure measured, so when you ask a question about pressure, please say exactly which pressure you mean. Scroll down to related links and look at "Pressure measurement - Wikipedia".
\n. A tonometer measures eye pressure.
It's not possible to measure both of those quantities with a singleinstrument. Wind speed . . . anemometer Air pressure . . . barometer
vacuum pressure gauge
They call it a Sphygmomanometer. (Sphyg mo manometer.) The word derives from the Greek for pulse, Sphyg. and Manometer for a pressure meter. For traditional reasons, the pre…ssure is still measured in the equivalent height of a column of mercury. Which is what was used originally in the manometer. inHg (Inches of mecury) The sphygmomanometer works by balancing air-pressure in an inflated cuff against the pulse pressure in the arm. A pressure gauge attached to the cuff indicates the pressure. The cuff is placed on the upper arm and then inflated. The pulse is listened to, using a stethoscope. The point at which the pulse can no longer be heard, is when the pressure of the cuff cuts off the blood supply and gives the upper reading, called the systolic. Then the pressure of the cuff is slowly released and the pulse listened to. The lowest pressure when the pulse can no longer be heard, is the Diastolic. This gives the two pressures of the heart, during a beat, at maximum pressure and when relaxed. These functions can be built into a machine, which uses a microphone to listen and an electric pump to control the cuff pressure. The computer displays the result on an LCD screen. The device was invented by Samuel Siegfried Karl Ritter von Basch in 1881. Scipione Riva-Rocci introduced a more easily used version in 1896. Harvey Cushing discovered this device in 1901 and popularized it.
manometer Commonly called a tire pressure gauge.
A Barometer measures atmospheric pressure.