Action of multiple resistance
As with electrics, a distinction is made in fluid technology between series and parallel resistances. For series circuits - as is the case for pipelines - the individual resistances are added ( series
Immunity to interference
Ability of the devices and switching elements of a control to resist hindrance to its function by interfering signals.
Hydrostatic machines
Collective term for pumps and motors which operate in accordance with the laws of hydrostatics (see also hydrostatic displacement machines).
Inductive position measurement
Inductive sensors are the favoured choice for short lengths in fluids-based drive technology. These are passive sensors based on the principle of self-induction. If an alternating current flows throug
Destroke time of a pump
Time that a variable pump requires to adjust from the max. flow rate Q max to a flow rate of zero. In general this time is shorter than the on-stroke time .
Pressure loss
Lasting pressure reduction as a consequence of energy conversion (e.g. at a flow resistance ) (DIN 24 312). The pressure loss along with the leakage loss is the most important source of loss in hydrau
Relative signal amplitude
Ratio of the magnitude of the signal considered to the magnitude of the nominal signal (max. signal). For the stability of a closed loop control system (e.g. closed loop position control system ) the
Valve
Device used to control or the output of the fluid by influencing the start, stop and direction, as well as the pressure and/or flow rate of the pressure fluid acting in the system ( Figure V 3 ). Valv
Screen filter
Filter with screen fabric as an active filter element. Screen filters are made for a filtration grade up to a maximum of 25 μm, as the ratio of filter surface to free pore space is too unfavourable be
Pump direction switching
There are two possible methods available for enabling a (relatively) low-pressure circulation of the pump delivery flow if it is needed elsewhere (excluding turning off the drive motor): The three-way