Band pass
Combination of high pass and low pass that is so designed that only signal frequencies in a defined frequency range (frequency pass) are allowed to pass largely unchanged; on the other hand elements o
Down time
Time from the "off" switching command to the "on" switching command (as a rule the same as the standstill time).
Hydraulic consumer
Represents in the function group for a hydraulic drive the component (cylinder, motor) in which the hydraulic energy is converted into mechanical energy.
Startup process
When a control system is started, the controlled variable is in principle still outside its control range such that in this range, in some circumstances, it is necessary to check the effect of the lim
Amplitude margin
Is the factor with which the static transfer factor of the open control circuit must be multiplied so that the related closed control circuit is at the stability boundary.
Ripple
Periodic fluctuation of a value above or below or around the work value.
Shuttle valve
Check valve with two inlets and one outlet. The pressurised inlet is automatically connected to a shared outlet, while the other inlet is blocked ( Figure W 4 ).
Contamination measurement
The standard process to measure the number of particles is currently automatic particle counting on an opto-electronic basis (e.g. HIAC), but this does not specify the size of the particles. In contra
Law of superposition
The law of superposition states: If an input variable (xe1) brings about an output variable (xa1) and also another input variable (xe2) brings about an output variable (xa2), therefore: if the law of