Pressure measurement

Pressure measurement refers to the process of determining the physical pressure of fluids and involves using a pressure measuring instrument such as a pressure gauge to determine and display data (also see Metrology).

Fluid columns are used in the most basic form of pressure measurement.
See Fig. 1 Pressure measurement

Spring pressure gauges are used for higher pressures. See Fig. 2 Pressure measurement

Pressure gauges are also frequently fitted with sensors, e.g. differential pressure or over-pressure sensors, which use capacitive, inductive, or piezoelectric sensing, or high-resolution sensing for transient pressure fields.