What Are Manometers Used For

We know there are different kinds of pressure around united states. Pressure, in simple words, is described as the concrete force exerted on an object. We know that atmospheric pressure is measured using an instrument called a barometer. In this article, let the states learn how fluid force per unit area is measured with respect to the Earth'southward temper using a device known as a manometer.

Table of Contents

Formula for Fluid Pressure level
Manometer and Classification of Manometer

U-Tube Manometer
Enlarged-Leg Manometer
Well-Type Manometer
Inclined-Tube Manometer

Often Asked Questions – FAQs

Formula for Fluid Pressure

Fluid pressure is given by the following equation: P = ρgh

Where,

P is the fluid force per unit area.

ρ is the density of the fluid.

g is the dispatch due to gravity.

h is the depth.

A manometer and Classification of Manometer

Manometer is a device that measures fluid pressure. Based on various criteria, manometers are classified into unlike types. They are:

U-Tube Manometer
Enlarged-Leg Manometer
Well-Type Manometer
Inclined-Tube Manometer

U-Tube Manometer

U-tube manometer features a vertical or inclined U-tube column that is filled with a reference liquid (mercury) to display the pressure level level. When the columns of the device are exposed to the atmosphere, the levels of liquid in the limbs are equal and this indicates the atmospheric pressure. When one of the columns is continued to the pressure vessel, there will be a difference in the level of the liquid in the limbs, which signifies the force per unit area of the liquid in the vessel.

A uncomplicated U-tube manometer is shown in the figure below. This type of manometer includes no moving parts and requires no calibration.

Manometer Image 1

From the figure above, nosotros tin meet that, when pressure is applied to the left side of a U-tube manometer, the left leg shows the lowering of liquid and the liquid rises in the right leg. The liquid moves until the unit weight of the liquid balances the force per unit area. Information technology is represented by the letter of the alphabet h.

Enlarged-Leg Manometer

Manometer Image 2

In this type of manometer, the float is seen in the enlarged leg that is used for noting or indicating. In an enlarged-leg manometer, two legs can be changed for irresolute the measurement span.

Well-Type Manometer

A well-type manometer includes a large well in one of the legs. Another leg features a elementary tube. For a minute change in the deportation of the liquid level in the well, at that place shall be a large change in the height of the tube. U-tube manometers can be used in place of a large well, such that the variation in the level in the well volition exist negligible and instead of measuring a differential pinnacle, a unmarried height in the remaining column is measured.

The expanse of the well is much greater than the area of the tube. In general, this ratio is greater than ten.

Inclined-Tube Manometer

It is a slant-shaped manometer which has a x-degree bending of the measuring leg. The sensitivity of the device is improved with the inclination. This manometer is used to measure the small force per unit area differences.

Frequently Asked Questions on Manometer

1. What is the formula to calculate the fluid pressure?

2. What is a manometer?

A manometer is used for measuring the fluid pressure level with respect to an outside source which is usually considered to be the world'southward atmosphere.

3. Which fluid is used for the measurement of the pressure level?

4. What are the dissimilar types of manometers?

U-Tube Manometer
Enlarged-Leg Manometer
Well-Type Manometer
Inclined-Tube Manometer

5. What is the angle of the measuring legs in an inclined tube manometer?