Corner frequency fE
On systems that correspond to a 1st degree differential equation, the corner frequency is the intersection of the horizontal asymptote with the asymptote on the falling branch in a Bode diagram (see a
Control unit
Device, which brings about the programmed cycle of all control functions in cyclical sequence and can be connected via a bus line with all inputs, outputs, functional units and the program memory.
Positive-pulse control
Reversal of a pulse valve by supplying air (pressurisation) to the piloting line. Since negative-pulse control is hardly used any more, the term used most often is simply pressure actuation.
Oscilloscope
Device used to visualise and record the course of physical processes which change over time, and particularly those involving oscillation. The following distinction is made in terms of functionality:
Monostable
Behaviour of a binary element or circuit associated with a stable state whereby a corresponding signal change at the input is needed to take the element out if its stable state for a specific period o
Sequence of measurements
A sequence of several measurements at the same object.
Linearity
A transfer element may be referred to as linear if the law of superposition (superposition principle) applies. Linear elements may therefore be split into parallel elements whose output signals are ad