In aircraft design, pressure gauges are commonly used to measure various types of pressure, such as atmospheric pressure, cabin pressure, hydraulic pressure, and more. The formula for pressure (P) and its SI unit in aircraft design is as follows:
This is the total pressure, including atmospheric pressure.It can be calculated as:
- P_absolute is the absolute pressure in Pascals (Pa).
- P_gauge is the gauge pressure in Pa.
- P_atm is the atmospheric pressure in Pa.