Measurement of Pressure

◆Measurement of Pressure◆

➡️Barometer

● Barometer is used to measure local atmospheric pressure.
●Barometer can not be used measure gauge pressure.

◆Types of manometer◆

➡️ Manometer

● Manometer is a device which is used to measure +ve & -ve gauge pressure.

●These are the devices used for measuring the pressure at a point in a liquid by balancing the column of liquid by the same or another column of liquid.

● Simple manometer {Piezometer}

It is measures +ve gauge pressure. 

It is only used for liquid.

 

Where,

ρ= density of liquid

h = height of liquid from the center of the pipe.
g = acceleration due to gravity.

● U tube manometer

It is measures +ve & -ve gauge pressure.

It is only used for liquid & gases.

● Inclined tube manometer

It is mostly used for gases.

● Differential manometer

It is used to measure pressure difference between two points.

● Inverted differential manometer

It is also used to measure pressure difference between two points. When lighter manometric fluid is used.

Join Telegram ▶️ @civilbhai