application of simple manometer

This ScienceStruck article explains the uses, types, and some parameters related to LCR meters. document.write(''); Piezometers are used to measure the pressure in pipes where the liquid is in motion. When it is measured with respect to absolute zero (or complete vacuum), it is called absolute pressure. By determining the height to which liquid rises and using the relation p = ρgh, a gauge pressure of the liquid can be determined. A liquid which is denser than the two fluids is used in the U tube, which is immiscible with the other fluids. The rise in liquid level in the tube is considered while that in the well is ignored. When it is measured with respect to absolute zero (or complete vacuum), it is called absolute pressure. | Contact. 4. This is because the indicating fluid density changes with temperature. A device used to measure the pressure at any point in a fluid, manometers are also used to measure the pressure of gas and air. The tube carries mercury or any other liquid or fluid whose specific gravity is much higher than the specific gravity of the liquid whose pressure is to be measured.eval(ez_write_tag([[300,250],'theengineerspost_com-medrectangle-4','ezslot_12',172,'0','0'])); Consider a vertical tube micromanometer connected to a pipe containing light liquid under very high pressure. If p. are absolute pressures applied as shown in figure: In the adjoining figure, the two points A and B are in liquids having different specific gravity. This downward movement of heavy liquid into the basin will result in a significant rise of heavy liquid in the right limb. DFM DFA Training Saif M. is a Mechanical Engineer by profession. A simple manometer has a glass tube that’s one end is connected to a point where pressure is to be measured and the other end remains open to atmosphere. A digital manometer uses a microprocessor and pressure transducer to sense slight changes in pressure. You also have the option to opt-out of these cookies.

A sphygmomanometer, a type of manometer, is commonly used to check blood pressure in humans. Hydrostatic equilibrium states that the pressure at any point in a fluid at rest is equal, and its value is just the weight of the overlying fluid. Read also: What are the Applications of Pascal’s Law?

Also, A and B are at different levels. Air or mercury is used as the manometric fluid. Let the pressure at point A be P, = difference in mercury level in the U-tube, This type of manometer is used when the difference between the densities of the two liquids is small. 3. © Copyright 2020 TheEngineersPost.com - All Rights Reserved, What Are The Different Types of Manometers? Differential Manometers are used to measure the pressure difference between two points in a pipe or between two different pipes. Let us take a closer look at the each individual type and their working principle in detail. pf = density of measured fluid. Similar to the previous type, A and B are points at different levels with liquids having different specific gravity. This site uses Akismet to reduce spam. // -->

p1 - p2 = Pressure Difference A manometer is one of the earliest and simplest devices used for measurement of gauge pressure and differential pressures. When it is measured either above or below atmospheric pressure, it is called gauge pressure. You have entered an incorrect email address! Engineering Toolbox

The pressure difference between two points can be simply measured by the difference in the level of liquid between the two tubes. Well, we're looking for good writers who want to spread the word.

Used in the maintenance of heating, ventilation, and air conditioning (HVAC) systems, low pressure pneumatic or gas systems. Digital manometers report positive, negative, or differential measurements between pressures. Our site includes quite a bit of content, so if you're having an issue finding what you're looking for, go on ahead and use that search feature there! | Feedback | Advertising

It possesses some limitations in the form of piezometers. Clinical applications like measuring blood pressure and in physiotherapy. There are currently no comments available. Used to measure pressure, temperature, flow and other process variables. Manometer's are used to measure the difference between dynamic and static pressures and may be configured as a u-tube, a single tube, or inverted depending on the application.

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