Graduated glass scale
Incremental displacement transducer that comprises a glass scale in which a series of graduations are cut; these graduations are scanned optically ( incremental position measurement ).
Total pressure
Sum of the static and dynamic pressure elements in a location (DIN 24 312).
Settling time of pressure
Time that is required for a sudden change in the operation pressure with a pre-defined deviation to settle.
Inlet pressure
Pressure at the inlet to a device or a system (DIN 24 312). Self-priming pumps generate a negative pressure during priming if the fluid feed height is not positive. Min. and max. inlet pressure are de
Natural damping
Damping that a system provides due to its nature (that can only be increased by means of specific measures).
Flow parameter
Characterises the relationship between the pressure and the flow in a device through which a compressible medium is flowing.
Damping pressure
Pressure that is produced during the damping process in cylinders and that must absorb the masses moved (as a rule piston + load).
Bode diagram (frequency characteristics)
Is used to characterise the dynamic behaviour of devices in hydraulics, above all of proportional valves and servo valves. In the Bode diagram the amplitude response and phase-frequency response are s