The manometer in its various forms is an extremely useful type of pressure measuring instrument, but suffers from a number of limitations.
to measure pressure
what are the advantages of a u-tube manometer than a piezometer
Manometer is a device that is being used to measure pressure. It uses alcohol because it has a low vapor pressure.
A manometer is a device for measuring pressures, especially the word is used for pressure meters that are constructed to use a liquid in a transparent U-tube. A peizometer is specifically about measuring pressures in ground water wells.
Compound Manometer is an 'U' Tube manometer having 'T' joints at appropriate equal elevation in the columns of U tube manometer where the impulse lines are to be connected to measure Differential Pressure. T joint allows the use Two liquids simultaneously in the manometer. i.e. the liquid who's differential pressure is to be measured being lighter it will gauge at the top and a heavier liquid which does not dissolve with the lighter fluid will gauge at the bottom. Elevation difference in lighter liquid as well as heavier liquids gives their respective differential pressure. Both the differential pressure will be equal in terms of Pressure Units. Since two liquids are used simultaneously this type of U tube manometer is called Compound Manometer.
A double tube manometer measure pressure. Manometers use liquid in a column and balance it against the pressure that they are measuring.
what are the advantages of a u-tube manometer than a piezometer
Pressure can be measured with a barometer, or a manometer.
it is simple to construct,cheap,very accurative
Manometer is a device that is being used to measure pressure. It uses alcohol because it has a low vapor pressure.
A manometer is a device for measuring pressures, especially the word is used for pressure meters that are constructed to use a liquid in a transparent U-tube. A peizometer is specifically about measuring pressures in ground water wells.
simple manometer differential manometer inclined manometer
A sphygmomanometer is also known as a mercury pressure device. It works by a mechanical manometer made of mercury that measures the pressure.
The function of a manometer is to measure the pressure of a fluid, usually a gas or a liquid. It consists of a sealed tube filled with the fluid being measured, with one end open to the environment and the other end connected to the source of pressure. As the pressure changes, the fluid in the manometer rises or falls, allowing the measurement of the pressure.
Manometer
http://www.komar.org/faq/manometer/
by setting up a manometer
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