Pressure
Measurement
Module 3
,Pressure Laws
Pressure is measured as force per unit
area (pounds per square inch)
Force (F)
Pressure (P) =
Area (A)
, Pressure Measurement
Scales
There are four basic scales
used to measure pressure:
1)Gage pressure (psig)
2)Absolute pressure (psia)
3)Differential pressure (psi)
4)Vacuum pressure (psiv)
, Comparison of Pressure
Scales
Measurement
Module 3
,Pressure Laws
Pressure is measured as force per unit
area (pounds per square inch)
Force (F)
Pressure (P) =
Area (A)
, Pressure Measurement
Scales
There are four basic scales
used to measure pressure:
1)Gage pressure (psig)
2)Absolute pressure (psia)
3)Differential pressure (psi)
4)Vacuum pressure (psiv)
, Comparison of Pressure
Scales