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Technical system comprising hardware and software that makes possible communication and the exchange of data between the devices connected to it (Figure F 8) . The devices are primarily sensors, actua

Pressure that is produced after filling, e.g. on the gas side of a hydraulic accumulator or on pumps on which the suction side is pressurised.

Provides information on the behaviour of the controlled variable with a changing reference variable , but constant disturbance variable . The controlled variable responds to external effects on the co

Control on which between the reference variable and output variable in the steady state there is always a unique relationship, provided disturbance variables do not cause any deviation (DIN 19 226).

The reference variable in a control or is a variable not affected directly by the related control or feedback control that is provided to the open loop control system or the from the exterior and that

Mathematical description of a follow up control in which, with the aid of the frequency response method, the transient response is determined (Figure F 36) .

Copying valve

Reflects the frequency distribution of noise including its intensity that together with the change over time describes a noise signal.

Process for superimposing signals on a carrier wave on which the amplitude remains constant, but the frequency changes with the modulation. This includes above all the pulse modulation method .

Bode diagram