General:
Depending on the nature of the changes in the pressure, a differentiation is made between static and dynamic pressure measuring procedures.
Static pressure measuring procedures are when constant pressures are measured. There are numerous measuring procedures available for this purpose; some of these methods provide very accurate results.
During dynamic pressure measuring procedures it must be ensured that the measuring frequency or excitation frequency is at least a factor of 10 above the natural frequency of the complete system, otherwise amplitude errors will occur. The complete system is the pressure transducer + measuring medium + pipes etc.
Mechanical and electrical measuring procedures are available for conducting the measurement.
In hydraulics:
In keeping with its significance in hydrostatics as one of the most important parameters, pressure is also one of the most important measured variables.
The most important task of the pressure measurement is monitoring operation. For this purpose, mechanical measuring procedures (Pressure gauge) as well as methods with an electrical output are used in which resistance measurement using strain gauges and the piezoresistive methods have become particularly important, way ahead of the inductive, capacitive and piezoelectric methods.
Pressure measurement procedures