The pressure is defined as the force acting per unit area. Following are the different types of pressure based on the reference pressure:
- Absolute pressure: Pressure which is related to reference pressure is known as absolute pressure.
- Differential pressure: The difference between the two pressures is equal to the differential pressure.
- Atmospheric pressure: Pressure related to the atmosphere that surrounds the earth is atmospheric pressure. This pressure is weather-dependent.
- Gauge pressure: This is the difference between absolute pressure and atmospheric pressure.